Includes
Computers, specifically designed; Complete Gyro Mechanisms; Optical Instruments for Bombing Fire Control.

Excludes
Gyro Components; Optical Elements, such as Lens, Prisms, Filters.

Possible NAICS Codes
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
334419 – Other Electronic Component Manufacturing
115310 – Support Activities for Forestry
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
332991 – Ball and Roller Bearing Manufacturing
333998 – All Other Miscellaneous General Purpose Machinery Manufacturing
334519 – Other Measuring and Controlling Device Manufacturing
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance