Naics code Naics crossreference
334419 Manufacturing X-ray tubes--are classified in U.S. Industry 334517, Irradiation Apparatus Manufacturing
334419 Manufacturing glass blanks for electron tubes--are classified in Industry 32721, Glass and Glass Product Manufacturing.
33451 Manufacturing global positioning system (GPS) equipment--are classified in Industry 33422, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
33451 Manufacturing motor control switches and relays (including timing relays)--are classified in Industry 33531, Electrical Equipment Manufacturing
33451 Manufacturing switches for appliances--are classified in Industry 33593, Wiring Device Manufacturing
33451 Manufacturing optical instruments--are classified in Industry 33331, Commercial and Service Industry Machinery Manufacturing
33451 Manufacturing glass watch and clock crystals--are classified in Industry 32721, Glass and Glass Product Manufacturing
33451 Manufacturing plastics watch and clock crystals--are classified in Industry 32619, Other Plastics Product Manufacturing
33451 Manufacturing smartwatches--are classified in Industry 33422, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
33451 Manufacturing medical thermometers and other nonelectrical medical apparatus--are classified in Industry 33911, Medical Equipment and Supplies Manufacturing.