Notes
This class includes, and is restricted to, devices the operation of which is based on principles involving the stimulated emission of radiation, and to associated components and accessories directly related to stimulated coherent radiation techniques. The methods for producing the radiation are those obtained by LASER (Light Amplification by Stimulated Emission of Radiation) and by MASER (Microwave and/or Molecular Amplification by Stimulated Emission of Radiation) techniques. Only those items specifically designed for stimulated coherent radiation applications, and having no other application, are to be included in this class. Assemblies or major systems containing such devices are excluded from this class.

Possible NAICS Codes
334519 – Other Measuring and Controlling Device Manufacturing
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
334516 – Analytical Laboratory Instrument Manufacturing
332721 – Precision Turned Product Manufacturing
334517 – Irradiation Apparatus Manufacturing
335999 – All Other Miscellaneous Electrical Equipment and Component Manufacturing
333310 – Commercial and Service Industry Machinery Manufacturing
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
333517 – Machine Tool Manufacturing