SIC Codes - Division D - Major Group 38: Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks

Major Group 38: Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks

This major group includes establishments engaged in manufacturing instruments (including professional and scientific) for measuring, testing, analyzing, and controlling, and their associated sensors and accessories; optical instruments and lenses; surveying and drafting instruments; hydrological, hydrographic, meteorological, and geophysical equipment; search, detection, navigation, and guidance systems and equipment; surgical, medical, and dental instruments, equipment, and supplies; ophthalmic goods; photographic equipment and supplies; and watches and clocks.

Industry Group 381: Search, Detection, Navigation, Guidance
- 3812 Search, Detection, Navigation, Guidance, Aeronautical, And Nautical
  Establishments primarily engaged in manufacturing search, detection, navigation, guidance, aeronautical, and nautical systems and instruments. Important products of this industry are radar systems and equipment; sonar systems and equipment; navigation systems and equipment; countermeasures equipment; aircraft and missile control systems and equipment; flight and navigation sensors, transmitters, and displays; gyroscopes; airframe equipment instruments; and speed, pitch, and roll navigational instruments and systems. Establishments primarily engaged in manufacturing aircraft engine instruments or meteorological systems and equipment, including weather tracking equipment, are classified in Industry 3829.
  - Acceleration indicators and systems components, aerospace types
  - Air traffic control radar systems and equipment
  - Airborne integrated data systems/flight recorders
  - Aircraft flight instruments
  - Airframe equipment instruments
  - Airspeed instrumentation (aeronautical instruments)
  - Altimeters, aeronautical
  - Angle-of-attack instrumentation
  - Angle-of-yaw instrumentation
  - Artificial horizon instrumentation
  - Automatic pilots
  - Bank and turn indicators and, components (aeronautical instruments)
  - Cabin environment indicators, transmitters, and sensors
  - Compasses, gyroscopic and magnetic except portable
  - Distance measuring equipment (DME), aeronautical
  - Driftmeters, aeronautical
  - Fathometers
  - Glide slope instrumentation
  - Gyrocompasses
  - Gyrogimbals
  - Gyropilots
  - Gyroscopes
  - Heads-up display (HUD) systems, aeronautical
  - Horizon situation instrumentation
  - Hydrophones
  - Inertial navigation systems, aeronautical
  - Infrared homing systems, aeronautical
  - Instrument landing system instrumentation, airborne or airport
  - Light reconnaissance and surveillance systems and equipment
  - Machmeters
  - Missile guidance systems and equipment
  - Nautical instruments
  - Navigational instruments
  - Omnibearing instrumentation
  - Pictorial situation instrumentation
  - Position indicators, airframe equipment: e.g., for landing gear,
  - Radar systems and equipment
  - Radio magnetic instrumentation (RMI)
  - Rate-of-climb instrumentation
  - Sextants, except surveying
  - Sonabuoys
  - Sonar fish finders
  - Sonar systems and equipment
  - Space vehicle guidance systems and equipment
  - Taffrail logs
  - Warfare countermeasures equipment
  - Wheel position indicators and transmitters, aircraft

Industry Group 382: Laboratory Apparatus And Analytical, Optical
- 3821 Laboratory Apparatus And Furniture
  Establishments primarily engaged in manufacturing laboratory apparatus and furniture. Important products of this industry include laboratory balances and scales, laboratory furnaces and ovens, laboratory centrifuges, and various components, parts, and accessories for laboratory apparatus. Laboratory instruments are classified elsewhere, generally in other industries of Industry Group 382.
  - Autoclaves, laboratory
  - Balances, laboratory
  - Bunsen burners
  - Calorimeters laboratory type
  - Centrifuges, laboratory
  - Crushing and grinding apparatus, laboratory
  - Distilling apparatus, laboratory type
  - Dryers, laboratory
  - Evaporation apparatus, laboratory type
  - Freezers, laboratory
  - Furnaces, laboratory except dental
  - Furniture, laboratory
  - Granulators, laboratory
  - Hotplates, laboratory
  - Incubators, laboratory
  - Laboratory equipment fume hoods, distillation racks, benches and
  - Melting point apparatus, laboratory
  - Microtomes
  - Ovens, laboratory
  - Particle size reduction apparatus, laboratory
  - Pipettes, hemocytometer
  - Sample preparation apparatus, laboratory type
  - Shakers and stirrers, laboratory
  - Sterilizers, laboratory
  - Worktables, laboratory
- 3822 Automatic Controls For Regulating Residential And Commercial
  Establishments primarily engaged in manufacturing temperature and related controls for heating and air-conditioning installations and refrigeration applications, which are electrically, electronically, or pneumatically actuated, and which measure and control variables such as temperature and humidity; and automatic regulators used as components of household appliances. Establishments primarily engaged in manufacturing industrial process controls are classified in Industry 3823; those manufacturing motor control switches are classified in Industry 3625; those manufacturing switches for household appliances are classified in Industry 3643; and those manufacturing appliance timers are classified in Industry 3873.
  - Air flow controllers, air-conditioning and refrigeration except valves
  - Appliance regulators, except switches
  - Building services monitoring controls, automatic
  - Clothes dryer controls including dryness controls
  - Combination limit and fan controls
  - Combination oil and hydronic controls
  - Damper operators pneumatic, thermostatic, and electric
  - Electric air cleaner controls, automatic
  - Electric heat proportioning controls, modulating controls
  - Electric space heater controls, automatic
  - Energy cutoff controls, residential and commercial types
  - Fan control, temperature responsive
  - Flame safety controls for furnaces and boilers
  - Float controls, residential and commercial types
  - Gas burner automatic controls, except valves
  - Gradual switches, pneumatic
  - Humidistats wall, duct, and skeleton
  - Humidity controls, air conditioning types
  - Hydronic circulator control, automatic
  - Hydronic limit control
  - Hydronic pressure and temperature controls
  - Ice bunk controls
  - Ice maker controls
  - Ignition controls for gas appliances and furnaces, automatic
  - In-built thermostats, filled system and bimetal types
  - Incinerator control systems, residential and commercial types
  - Limit controls, residential and commercial heating types
  - Line or limit control for electric heat
  - Liquid level controls, residential and commercial heating types
  - Oven temperature controls, nonindustrial
  - Pneumatic relays, air-conditioning type
  - Pressure controllers, air-conditioning system type
  - Primary oil burner controls, including stack controls and cadmium
  - Refrigeration controls, pressure
  - Refrigeration thermostats
  - Refrigeration/air-conditioning defrost controls
  - Sequencing controls for electric heat
  - Static pressure regulators
  - Steam pressure controls, residential and commercial type
  - Surface burner controls, temperature
  - Switches pneumatic positioning remote
  - Switches, thermostatic
  - Temperature controls, automatic: residential and commercial types
  - Temperature sensors for motor windings
  - Thermocouples, vacuum: glass
  - Thermostats: air-conditioning, refrigeration, comfort heating,
  - Time program controls, air-conditioning systems
  - Vapor heating controls
  - Water heater controls
- 3823 Industrial Instruments For Measurement, Display, And Control Of
  Establishments primarily engaged in manufacturing industrial instruments and related products for measuring, displaying (indicating and/or recording), transmitting, and controlling process variables in manufacturing, energy conversion, and public service utilities. These instruments operate mechanically, pneumatically, electronically, or electrically to measure process variables, such as temperature, humidity, pressure, vacuum, combustion, flow, level, viscosity, density, acidity, alkalinity, specific gravity, gas and liquid concentration, sequence, time interval, mechanical motion, and rotation. Establishments primarily engaged in manufacturing electrical integrating meters are classified in Industry 3825; those manufacturing residential and commercial comfort controls are classified in Industry 3822; those manufacturing all liquid-in-glass and bimetal thermometers and glass hydrometers are classified in Industry 3829; those manufacturing recorder charts are classified in Industry Group 275; and those manufacturing analytical and optical instruments are classified in Industries 3826 and 3827.
  - Absorption analyzers, industrial process type: e.g., infrared, X-ray
  - Analyzers, industrial process type
  - Annunciators, relay and solid-state types: industrial display
  - Boiler controls: industrial, power, and marine type
  - Buoyancy instruments, industrial process type
  - Chromatographs, industrial process type
  - Combustion control instruments, except commercial and household
  - Computer interface equipment for industrial process control
  - Controllers for process variables: electric, electronic, and pneumatic
  - Coulometric analyzers, industrial process type
  - Data loggers, industrial process type
  - Density and specific gravity instruments, industrial process type
  - Differential pressure instruments, industrial process type
  - Digital displays of process variables
  - Draft gauges, industrial process type
  - Electrodes used in industrial process measurement
  - Electrolytic conductivity instruments, industrial process type
  - Flow instruments, industrial process type
  - Fluidic devices, circuits, and systems for process control
  - Gas and liquid analysis instruments, industrial process type
  - Gas flow computers, industrial process type
  - Humidity instruments, industrial process type
  - Hydrometers, industrial process type
  - Industrial process control instruments
  - Infrared instruments, industrial process type
  - Level and bulk measuring instruments, industrial process type
  - Liquid analysis instruments, industrial process type
  - Liquid concentration instruments, industrial process type
  - Liquid level instruments, industrial process type
  - Magnetic flow meters, industrial process type
  - Manometers, industrial process type
  - Moisture meters, industrial process type
  - Nuclear reactor controls
  - Panelboard indicators, recorders and controllers: receiver type
  - Potentiometric self-balancing instruments, except X-Y plotters
  - Pressure gauges, dial and digital
  - Pressure instruments, industrial process type
  - Primary elements for process flow measurement: orifice plates
  - Programmers, process type
  - Pyrometers, industrial process type
  - Refractometers, industrial process type
  - Resistance thermometers and bulbs, industrial process type
  - Telemetering instruments, industrial process type
  - Temperature instruments: industrial process type, except glass and
  - Thermal conductivity instruments, industrial process type
  - Thermistors, industrial process type
  - Thermocouples, industrial process type
  - Thermometers, filled system: industrial process type
  - Time cycle and program controllers, industrial process type
  - Transmitters of process variables, standard signal conversion
  - Turbidity instruments, industrial process type
  - Turbine flow meters, industrial process type
  - Viscosimeters, industrial process type
  - Water quality monitoring and control systems
- 3824 Totalizing Fluid Meters And Counting Devices
  Establishments primarily engaged in manufacturing totalizing (registering) meters monitoring fluid flows, such as water meters and gas, meters; and producers of mechanical and electromechanical counters and associated metering devices. Establishments primarily engaged in manufacturing electricity integrating meters and electronic frequency counters are classified in Industry 3825, and those manufacturing industrial process instruments are classified in Industry 3823.
  - Controls, revolution and timing instruments
  - Counter type registers
  - Counters, revolution
  - Counters: mechanical, electrical, and electronic totalizing
  - Electromechanical counters
  - Electronic totalizing counters
  - Gasmeters: domestic, large capacity, and industrial
  - Gasoline dispensing meters (except pumps)
  - Gauges for computing pressure-temperature corrections
  - Impeller and counter driven flow meters
  - Integrating meters, nonelectric
  - Linear counters
  - Magnetic counters
  - Measuring wheels
  - Meters: gas, liquid, tallying, and mechanical measuring-except
  - Odometers
  - Parking meters
  - Pedometers
  - Positive displacement meters
  - Predetermined counters
  - Production counters
  - Propeller type meters with registers
  - Registers, linear tallying
  - Rotary type meters, consumption registering
  - Speed indicators and recorders, vehicle
  - Speedometers
  - Tachometer, centrifugal
  - Tally counters
  - Tallying meters: except electrical instruments, watches, and clocks
  - Tank truck meters
  - Taximeters
  - Totalizing meters, consumption registering, except aircraft
  - Turbine meters, consumption registering
  - Vehicle tank meters
  - Watermeters, consumption registering
- 3825 Instruments For Measuring And Testing Of Electricity And Electrical
  Establishments primarily engaged in manufacturing instruments for measuring the characteristics of electricity and electrical signals, such as voltmeters, ammeters, wattmeters, watt-hour meters, demand meters, and equipment for testing the electrical characteristics of electrical, radio, and communication circuits and of internal combustion engines. Establishments primarily engaged in the manufacturing of electronic checkout, monitoring, evaluating, and other electronic support equipment for electronic navigational, radar, and sonar systems are classified in Industry 3812, and those manufacturing similar equipment for communications systems classified in Industry Group 366.
  - Alternator and generator testers
  - Ammeters
  - Ampere-hour meters
  - Analog-to-digital converters, electronic instrumentation type
  - Analyzers for testing electrical characteristics
  - Audiometers, except medical
  - Automotive ammeters and voltmeters
  - Battery testers, electrical
  - Bleed control cabinets (engine testers)
  - Bridges, electrical: e.g., Kelvin, Wheatstone, vacuum tube, and
  - Current measuring equipment
  - Decade boxes: capacitance, inductance, and resistance
  - Demand meters, electric
  - Digital panel meters, electricity measuring
  - Digital test equipment, electronic and electrical circuits and equipment
  - Digital-to-analog converters, electronic instrumentation, type
  - Diode and transistor testers
  - Distortion meters and analyzers
  - Elapsed time meters, electronic
  - Electron tube test equipment
  - Electronic test equipment for testing electrical characteristics
  - Energy measuring equipment, electrical
  - Field strength and intensity measuring equipment, electrical
  - Frequency meters: electrical, mechanical, and electronic
  - Frequency synthesizers
  - Function generators
  - Galvanometers, except geophysical
  - Ignition testing instruments
  - Impedance measuring equipment
  - Indicating instruments, electric
  - Instrument relays, all types
  - Instrument shunts
  - Instruments for measuring electrical quantities
  - Instruments, electric: for testing electrical characteristics
  - Integrated-circuit testers
  - Integrating electricity meters
  - Internal combustion engine analyzers, to test electrical characteristics
  - Laboratory standards, electric: resistance, inductance, and capacitance
  - Logic circuit testers
  - Measuring equipment for electronic and electrical circuits and
  - Measuring instruments and meters, electric
  - Meters, electric: pocket, portable, panelboard, and graphic recording
  - Meters, power factor and phase angle
  - Microwave test equipment
  - Multimeters
  - Network analyzers
  - Ohmmeters
  - Oscillators, audio frequency and radio frequency (instrument types)
  - Oscillographs and oscilloscopes
  - Potentiometric instruments, except industrial process type
  - Power measuring equipment, electrical
  - Pulse (signal) generators
  - Radar testing instruments, electric
  - Radio apparatus analyzers for testing electrical characteristics
  - Radio set analyzers, electrical
  - Radio tube checkers, electrical
  - Radio frequency measuring equipment
  - Recorders, oscillographic
  - Reflectometers, sliding shorts
  - Resistance measuring equipment
  - Semiconductor test equipment
  - Signal generators and averages
  - Spark plug testing instruments, electric
  - Spectrum analyzers
  - Standard cells
  - Standards and calibration equipment for electrical measuring, except
  - Standing wave ratio measuring equipment
  - Stroboscopes
  - Sweep generators
  - Sweep oscillators
  - Synchroscopes
  - Tachometer generators
  - Test equipment for electronic and electrical circuits and equipment
  - Test sets, ignition harness
  - Time code generators
  - Transformers, instrument: portable
  - Tube testers
  - Volt-ohm milliammeters
  - Voltmeters
  - Watt-hour and demand meters, combined
  - Watt-hour and time switch meters, combined
  - Watt-hour meters, electric
  - Wattmeters
  - Waveform measuring and/or analyzing equipment
- 3826 Laboratory Analytical Instruments
  Establishments primarily engaged in manufacturing laboratory instruments and instrumentation systems for chemical or physical analysis of the composition or concentration of samples of solid, fluid, gaseous, or composite material. Establishments primarily engaged in manufacturing instruments for monitoring and analyzing continuous samples from medical patients are classified in Industry 3845, and from industrial process streams are classified in Industry 3823.
  - Amino acid analyzers, laboratory type
  - Automatic chemical analyzers, laboratory type
  - Chromatographic instruments, laboratory type
  - Colorimeters, laboratory type
  - Coulometric analyzers, laboratory type
  - Densitometers, analytical
  - Differential thermal analysis instruments
  - Electrolytic conductivity instruments, laboratory type
  - Electron paramagnetic spin type apparatus
  - Electrophoresis instruments
  - Elemental analyzers (CHNOS)
  - Flame photometers
  - Gas analyzers, laboratory type
  - Gas chromatographic instruments, laboratory type
  - Infrared type analytical instruments, laboratory type
  - Liquid chromatographic instruments, laboratory type
  - Magnetic resonance imaging type apparatus, except diagnostic
  - Mass spectrometers
  - Mass spectroscopy instrumentation
  - Microprobes: electron, ion, laser, X-ray
  - Microscopes, electron and proton
  - Moisture analyzers, laboratory type
  - Monochrometers, laboratory type
  - Nephelometers, except meteorological
  - Neutron activation analysis instruments
  - Osmometers
  - Particle size analyzers
  - Photometers, except photographic exposure meters
  - Polariscopes
  - Polarizers
  - Polarographic equipment
  - Protein analyzers, laboratory type
  - Redox (oxidation-reduction potential) instruments
  - Refractometers, laboratory
  - Specific ion measuring instruments, laboratory type
  - Spectrofluorometers
  - Spectrographs
  - Spectrometers: electron diffraction, mass, nmr, raman, x-ray
  - Spectrophotometers: atomic absorption, atomic emission, flame,
  - Surface area analyzers
  - Thermal analysis instruments, laboratory type
  - Thermal conductivity instruments and sensors
  - Thermogravimetric analyzers
  - Titrimeters
  - Turbidometers
  - Ultraviolet-type analytical instruments
- 3827 Optical Instruments And Lenses
  Establishments primarily engaged in manufacturing instruments and apparatus that measure an optical property and optically project, measure, or magnify an image, such as binoculars, microscopes, prisms, and lenses. Included are establishments primarily engaged in manufacturing optical sighting and fire control equipment.
  - Aiming circles (fire control equipment)
  - Binoculars
  - Boards: plotting, spotting, and gun fire adjustment
  - Borescopes
  - Cinetheodolites
  - Coddington magnifying instruments
  - Contour projectors
  - Correctors: percentage, wind, and roll (sighting and fire control
  - Fuse setters (fire control equipment)
  - Glasses, field or opera
  - Gratings, diffraction
  - Gun sights, optical
  - Interferometers
  - Lens coating
  - Lens grinding, except ophthalmic
  - Lens mounts
  - Lenses, optical: photographic, magnifying, projection, and instrument
  - Light sources, standard
  - Lupes magnifying instruments, optical
  - Magnifying instruments, optical
  - Metallographs
  - Microprojectors
  - Microscopes, except electron, proton and corneal
  - Mirrors, optical
  - Optical alignment and display instruments, except photographic
  - Optical comparators
  - Optical test and inspection equipment
  - Periscopes
  - Phototheodolites
  - Prisms, optical
  - Reflectors, optical
  - Searchlight mirrors and reflectors
  - Sighting and fire control equipment, optical
  - Spy glasses
  - Telescopes
  - Telescopic sights
  - Triplet magnifying instruments, optical
- 3829 Measuring And Controlling Devices, Not Elsewhere Classified
  Establishments primarily engaged in manufacturing measuring and controlling devices, not elsewhere classified, including meteorological instruments. Important products of this industry are physical properties testing equipment, nuclear radiation detection and monitoring instrumentation, aircraft engine instruments (except flight), and liquid-in-glass and bimetal thermometers. Also included in this industry are establishments primarily engaged in manufacturing surveying and drafting instruments, such as alidades, transits, sextants, theodolites, slide rules, and T- squares.
  - Accelerometers, except aerospace type
  - Actinometers, meteorological
  - Alidades, surveying
  - Anamometers
  - Barographs
  - Barometers, mercury and aneroid types
  - Cable testing machines
  - Ceilometers
  - Chronometers, electronic
  - Clinical thermometers, including digital
  - Compasses, magnetic: portable type
  - Count rate meters, nuclear radiation
  - Drafting instruments and machines
  - Dynamometer instruments
  - Electrogamma ray loggers
  - Evaporation meters
  - Fare registers: e.g., for streetcars and buses
  - Fatigue testing machines, industrial: mechanical
  - Fuel densitometers, aircraft engine
  - Fuel mixture indicators, aircraft engine
  - Fuel system instruments, aircraft
  - Fuel totalizers, aircraft engine
  - Gauges except electric, motor vehicle: oil pressure and water
  - Gauging instruments, thickness: ultrasonic
  - Geiger counters
  - Hardness testing equipment
  - Humidity instruments, except industrial process and air-conditioning
  - Hydrometers, except industrial process type
  - Hygrometers, except industrial process type
  - Hygrothermographs
  - Instrumentation for reactor controls, auxiliary
  - Ion chambers
  - Kinematic test and measuring equipment
  - Level gauges, radiation type
  - Levels and tapes, surveying
  - Magnetometers
  - Map plotting instruments
  - Meteorogic tracking systems
  - Meteorological instruments
  - Nephoscopes
  - Nuclear instrument modules
  - Nuclear radiation detection and monitoring instruments
  - Personnel dosimetry devices
  - Photogrammetrical instruments
  - Photopitometers
  - Physical properties testing and inspection equipment
  - Pitometers
  - Pressure and vacuum indicators, aircraft engine
  - Pulse analyzers, nuclear monitoring
  - Pyrheliometers
  - Radiation measuring and detecting (radiac) equipment
  - Rain gauges
  - Restitution apparatus, photogrammetrical
  - Sample changers, nuclear radiation
  - Scalers, nuclear radiation
  - Scintillation detectors
  - Seismographs
  - Seismometers
  - Seismoscopes
  - Sextants, surveying
  - Solarimeters
  - Spectrometers, liquid scintillation and nuclear
  - Stereotopographs
  - Stress, strain, and flaw detecting and measuring equipment
  - Surveying instruments
  - Synchronizers, aircraft engine
  - Testers for checking hydraulic controls on aircraft
  - Testing equipment: abrasion, shearing strength, tensile strength, and
  - Theodolites, surveying
  - Thermocouples, except industrial process, aircraft type, and glass
  - Thermohydrometers
  - Thermometers, liquid-in-glass and bimetal types
  - Thrust power indicators, aircraft engine
  - Toll booths, automatic
  - Transducers, pressure
  - Transits, surveying
  - Turnstiles, equipped with counting mechanisms
  - Ultrasonic testing equipment
  - Vibration meters, analyzers, and calibrators
  - Viscosimeters, except industrial process type
  - Weather tracking equipment
  - Whole body counters, nuclear
  - Wind direction indicators

Industry Group 384: Surgical, Medical, And Dental Instruments And
- 3841 Surgical And Medical Instruments And Apparatus
  Establishments primarily engaged in manufacturing medical, surgical, ophthalmic, and veterinary instruments and apparatus. Establishments primarily engaged in manufacturing surgical and orthopedic appliances are classified in Industry 3842; those manufacturing electrotherapeutic and electromedical apparatus are classified in Industry 3845; and those manufacturing X-ray apparatus are classified in Industry 3844.
  - Anestheaia apparatus
  - Biopsy instruments and equipment
  - Blood pressure apparatus
  - Blood transfusion equipment
  - Bone drills
  - Bone plates and screws
  - Bone rongeurs
  - Bronchoscopes, except electromedical
  - Cannulae
  - Catheters
  - Clamps, surgical
  - Corneal microscopes
  - Cystoscopes, except electromedical
  - Diagnostic apparatus, physicians'
  - Eye examining instruments and apparatus
  - Fixation appliances, internal
  - Forceps, surgical
  - Gastroscopes, except electromedical
  - Hemodialysis apparatus
  - Holders, surgical needle
  - Hypodermic needles and syringes
  - Inhalation therapy equipment
  - Inhalators, surgical and medical
  - Instruments and apparatus, except electromedical: medical, surgical
  - Instruments, microsurgical: except electromedical
  - Knives, surgical
  - Metabolism apparatus
  - Muscle exercise apparatus, ophthalmic
  - Needle holders, surgical
  - Needles, suture
  - Operating tables
  - Ophthalmic instruments and apparatus
  - Ophthalmometers and ophthalmoscopes
  - Optometers
  - Otoscopes, except electromedical
  - Oxygen tents
  - Pelvimeters
  - Physiotherapy equipment, electrical
  - Probes, surgical
  - Retinoscopes, except electromedical
  - Retractors
  - Rifles for propelling hypodermics into animals
  - Saws, surgical
  - Skin grafting equipment
  - Slit lamps (ophthalmic goods)
  - Speculums
  - Sphygmomanometers
  - Stethoscopes and stethographs
  - Suction therapy apparatus
  - Surgical instruments and apparatus, except electromedical
  - Surgical knife blades and handles
  - Surgical stapling devices
  - Tonometers, medical
  - Trocars
  - Ultrasonic medical cleaning equipment
  - Veterinarians' instruments and apparatus
- 3842 Orthopedic, Prosthetic, And Surgical Appliances And Supplies
  Establishments primarily engaged in manufacturing orthopedic, prosthetic, and surgical appliances and supplies, arch supports and other foot appliances; fracture appliances, elastic hosiery, abdominal supporters, braces, and trusses; bandages; surgical gauze and dressings; sutures; adhesive tapes and medicated plasters; and personal safety appliances and equipment. Establishments primarily engaged in manufacturing surgical and medical instruments are classified in Industry 3841. Establishments primarily engaged in manufacturing orthopedic or prosthetic appliances and in the personal fitting to the individual prescription by a physician are classified in Retail Trade, Industry 5999.
  - Abdominal supporters, braces, and trusses
  - Absorbent cotton, sterilized
  - Adhesive tape and plasters, medicated or non-medicated
  - Applicators, cotton tipped
  - Atomizers, medical
  - Autoclaves, hospital and surgical
  - Bandages and dressings, surgical and orthopedic
  - Bandages: plastics, muslin, and plaster of paris
  - Belts: sanitary, surgical, and corrective
  - Braces, elastic
  - Braces, orthopedic
  - Bulletproof vests
  - Canes, orthopedic
  - Cervical collars
  - Clothing, fire resistant and protective
  - Colostomy appliances
  - Corn remover and bunion pads
  - Corsets, surgical
  - Cosmetic restorations
  - Cotton, absorbent: sterilized
  - Cotton, including cotton balls
  - Crutches and walkers
  - Drapes, surgical: cotton
  - Dressings, surgical
  - Ear stoppers
  - Elastic hosiery, orthopedic
  - Extension shoes, orthopedic
  - First aid, snake bite, and burn kits
  - Foot appliances, orthopedic
  - Fracture appliances, surgical
  - Gas masks
  - Gauze, surgical: not made in weaving mills
  - Grafts, artificial: for surgery-made of braided or mesh artificial fibers
  - Gynecological supplies and appliances
  - Hearing aids
  - Helmets, space
  - Hosiery, support
  - Hydrotherapy equipment
  - Implants, surgical
  - Infant incubators
  - Intrauterine devices
  - Iron lungs
  - Life preservers, except cork and inflatable
  - Ligatures, medical
  - Limbs, artificial
  - Linemen's safety belts
  - Models, anatomical
  - Noise protectors, personal
  - Orthopedic devices and materials
  - Pads, incontinent and bed
  - Personal safety appliances and equipment
  - Plugs, ear and nose
  - Prosthetic appliances and supplies
  - Radiation shielding aprons, gloves, and sheeting
  - Respirators
  - Respiratory protection equipment, personal
  - Restraints, patient
  - Safety appliances and equipment, personal
  - Safety gloves, all materials
  - Socks, stump
  - Space suits
  - Splints, pneumatic and wood
  - Sponges, surgical
  - Sterilizers, hospital and surgical
  - Stockinette, surgical
  - Stretchers
  - Suits, firefighting: asbestos
  - Supports: abdominal, ankle, arch, and kneecap
  - Surgical appliances and supplies, except medical instruments
  - Suspensories
  - Sutures
  - Swabs, sanitary cotton
  - Tongue depressors
  - Traction apparatus
  - Trusses: orthopedic and surgical
  - Welders' hoods
  - Wheel chairs
  - Whirlpool baths, hydrotherapy equipment
- 3843 Dental Equipment And Supplies
  Establishments primarily engaged in manufacturing artificial teeth, dental metals, alloys, and amalgams, and a wide variety of equipment, instruments, and supplies used by dentists, dental laboratories, and dental colleges. Dental laboratories constructing artificial dentures, bridges, inlays, and other dental restorations on specifications from dentists are classified in Services, Industry 8072.
  - Abrasive points, wheels, and disks: dental
  - Autoclaves, dental
  - Broaches, dental
  - Burs, dental
  - Cabinets, dental
  - Cement, dental
  - Chairs, dentists'
  - Compounds, dental
  - Cutting instruments, dental
  - Dental alloys for amalgams
  - Dental engines
  - Dental equipment and supplies
  - Dental hand instruments, including forceps
  - Dental laboratory equipment
  - Dental metal
  - Denture materials
  - Drills, dental
  - Enamels, dentists'
  - Forceps, dental
  - Furnaces, laboratory: dental
  - Glue, dental
  - Gold, dental
  - Hand pieces and parts, dental
  - Impression material, dental
  - Investment material, dental
  - Orthodontic appliances
  - Plaster, dental
  - Pliers, dental
  - Sterilizers, dental
  - Teeth, artificial: not made in dental laboratories
  - Tools, dentists'
  - Ultrasonic dental equipment
  - Wax, dental
- 3844 X-ray Apparatus And Tubes And Related Irradiation Apparatus
  Establishments primarily engaged in manufacturing radiographic X-ray, fluoroscopic X-ray, and therapeutic X-ray apparatus and tubes for medical, industrial, research, and control applications, or in manufacturing other irradiation equipment, including gamma and beta-ray equipment.
  - Beta-ray irradiation equipment
  - Fluoroscopes
  - Fluoroscopic X-ray apparatus and tubes
  - Gamma ray irradiation equipment
  - Irradiation equipment
  - Lamps, X-ray
  - Nuclear irradiation equipment
  - Radiographic X-ray apparatus and tubes: medical, industrial, and
  - Radium equipment
  - Therapeutic X-ray apparatus and tubes: medical, industrial, and
- 3845 Electromedical And Electrotherapeutic Apparatus
  Establishments primarily engaged in manufacturing electromedical and electrotherapeutic apparatus. Establishments primarily engaged in manufacturing electrotherapeutic lamp units for ultraviolet and infrared radiation are classified in Industry 3641.
  - Arc lamp units, electrotherapeutic: except infrared and ultraviolet
  - Audiological equipment, electromedical
  - Automated blood and body fluid analyzers, except laboratory
  - Cardiographs
  - Colonscopes, electromedical
  - Computerized axial tomography (CT/CAT scanner) apparatus
  - Cystoscopes, electromedical
  - Defibrilators
  - Dialyzers, electromedical
  - Diathermy apparatus, electromedical
  - Electrocardiographs
  - Electroencephalographs
  - Electromedical apparatus
  - Electromyographs
  - Endoscopic equipment, electromedical: e.g., bronchoscopes,
  - Gastroscopes, electromedical
  - Laser systems and equipment, medical
  - Lithotripters
  - Magnetic resonance imaging device (diagnostic), nuclear
  - Otoscopes, electromedical
  - Pacemakers
  - Patient monitoring equipment: intensive care/coronary care unit
  - Phonocardiographs
  - Position emission tomography (PET scanner)
  - Respiratory analysis equipment, electromedical
  - Retinoscopes, electromedical
  - Surgical support systems: heart-lung machines, except iron lungs and
  - Transcutaneous electrical nerve stimulators (TENS)
  - Ultrasonic medical equipment, except cleaning
  - Ultrasonic scanning devices, medical

Industry Group 385: Ophthalmic Goods
- 3851 Ophthalmic Goods
  Establishments primarily engaged in manufacturing ophthalmic frames, lenses, and sunglass lenses. Establishments primarily engaged in manufacturing molded glass blanks are classified in Industry 3229. Establishments primarily engaged in grinding lenses and fitting glasses to prescription are classified in Retail Trade, Industry 5995.
  - Contact lenses
  - Eyeglasses, lenses, and frames
  - Eyes, glass and plastics
  - Frames and parts, eyeglass and spectacle
  - Glasses, sun or glare
  - Goggles: sun, safety, industrial, and underwater
  - Intra ocular lenses
  - Lens coating, ophthalmic
  - Lens grinding, ophthalmic, except prescription
  - Lenses, ophthalmic
  - Lorgnettes
  - Magnifiers (readers and simple magnifiers)
  - Mountings, eyeglass and spectacle
  - Ophthalmic lens grinding, except prescription
  - Protectors, eye spectacles
  - Temples and fronts, ophthalmic

Industry Group 386: Photographic Equipment And Supplies
- 3861 Photographic Equipment And Supplies
  Establishments primarily engaged in manufacturing: (1) photographic apparatus, equipment, parts, attachments, and accessories, such as still and motion picture camera and projection apparatus; photocopy and microfilm equipment; blueprinting and diazotype (white printing) apparatus and equipment; and other photographic equipment; and (2) sensitized film, paper, cloth, and plates, and prepared photographic chemicals for use therewith. Establishments primarily engaged in manufacturing photographic paper stock (unsensitized), and paper mats, mounts, easels, and folders for photographic use, are classified in Major Group 26; those manufacturing photographic lenses are classified in Industry 3827; those manufacturing photographic glass are classified in Major Group 32; those manufacturing chemicals for technical purposes, not specifically prepared and packaged for use in photography, are classified in Major Group 28; and those manufacturing photographic flash, flood, enlarger, and projection lamp bulbs are classified in Industry 3641.
  - Aerial cameras
  - Blueprint cloth or paper, sensitized
  - Blueprint reproduction machines and equipment
  - Brownprint paper and cloth, sensitized
  - Brownprint reproduction machines and equipment
  - Cameras, microfilm
  - Cameras, still and motion picture
  - Densitometers
  - Developers, prepared photographic: not made in chemical plants
  - Developing machines and equipment, still or motion picture
  - Diazo (whiteprint) paper and cloth, sensitized
  - Diazotype (whiteprint) reproduction machines and equipment
  - Driers, photographic
  - Editing equipment, motion picture: rewinds, viewers, titlers, and
  - Enlargers, photographic
  - Exposure meters, photographic
  - Film, sensitized: motion picture, X-ray, still camera, and special
  - Fixers, prepared photographic: not made in chemical plants
  - Flashlight apparatus for photographers, except bulbs
  - Graphic arts plates, sensitized
  - Hangers: photographic film, plate, and paper
  - Heat sensitized paper made from purchased paper
  - Holders: photographic film, plate, and paper
  - Lantern slide plates, sensitized
  - Lens shades, camera
  - Light meters, photographic
  - Metallic emulsion sensitized paper and cloth, photographic
  - Microfiche cameras
  - Microfiche readers and reader printers
  - Microfilm equipment: cameras, projectors, and readers
  - Motion picture apparatus and equipment
  - Motion picture film
  - Photocopy machines
  - Photoflash equipment, except lamp bulbs
  - Photographic chemicals, packaged
  - Photographic equipment and accessories
  - Photographic instruments, electronic
  - Photographic paper and cloth, sensitized
  - Photographic sensitized goods
  - Photoreconnaissance systems
  - Plates, photographic: sensitized
  - Printing equipment, photographic
  - Printing frames, photographic
  - Processing equipment, photographic
  - Projectors, still and motion picture: silent and sound
  - Range finders, photographic
  - Reels, film
  - Screens, projection
  - Sensitometers, photographic
  - Shutters, camera
  - Sound recording and reproducing equipment, motion picture
  - Stands, camera and projector
  - Stereopticons
  - Tanks: photographic developing, fixing, and washing
  - Toners, prepared photographic, packaged
  - Trays, photographic printing and processing
  - Tripods, camera and projector
  - Washers, photographic print and film

Industry Group 387: Watches, Clocks, Clockwork Operated Devices
- 3873 Watches, Clocks, Clockwork Operated Devices, And Parts
  Establishments primarily engaged in manufacturing clocks (including electric), watches, watchcases, mechanisms for clockwork operated devices, and clock and watch parts. This industry includes establishments primarily engaged in assembling clocks and watches from purchased movements and cases. Establishments primarily engaged in manufacturing timeclocks are classified in Industry 3579; those manufacturing glass crystals are classified in Industry 3231; and those manufacturing plastics crystals are classified in Industry 3089.
  - Appliance timers
  - Chronographs, spring wound
  - Chronometers, spring wound
  - Clock materials and parts, except crystals and jewels
  - Clocks, assembling of
  - Clocks, except timeclocks
  - Mechanisms for clockwork operated devices
  - Movements, watch or clock
  - Timers for industrial use, clockwork mechanism only
  - Watchcases
  - Watches and parts: except crystals and jewels