repair services, namely, maintenance, repair, and installation of electronic component devices, assemblies and systems, namely, sonar systems, combat systems, radar systems, magnetic video recordings rotary head scanner assemblies and broadcast quality video recording devices and parts therefor; refurbishing and rebuilding machines that have been worn or partially destroyed, namely, electronic component devices and assemblies, namely, sonar systems, combat systems, radar systems, magnetic video recording rotary head scanner assemblies, broadcast quality video recording devices, magnetic broadcast audio heads, magnetic flight recorder heads and magnetic strip card readers for defense and commercial markets, commercial upper drum and rotary head scanner assemblies for television broadcast and post-production facilities

manufacture of computer hardware, electronic devices and electronic assemblies, namely, acoustic, sonar, radar, tactical, combat, navigational and infrared signal processors, recorders and sensors, acoustic video display systems, mission data recorders, optical systems, complex cables, cable harnesses and circuit cards, magnetic broadcast audio heads, magnetic flight recorder heads and magnetic strip card readers to the order and specification of others, namely, military, industrial and commercial users;[ manufacture of commercial video recording products, to the order and specification of others, namely, for television and post-production facilities]

educational services, namely, training end-users in the use and operation of computer hardware, computer software and electronic devices, namely, sonar systems, data recording and processing systems