- Accelerating waveguide structures (33)
- Cyclotrons (2)
- Electron linear accelerators (1)
- Electron beam metal cutting, forming or welding machines (2)
- Laser welding, drilling, and cutting equipment (17)
- Welding machines and equipment, ultrasonic (2)
- Electronic training devices (11)
- Countermeasure simulators, electric (8)
- Flight simulators (training aids), electronic (17)
- Teaching machines and aids, electronic (5)
- Automotive driving simulators (training aids), electronic (6)
- Bells, electric (1)
- Chimes, electric (1)
- Sound signaling devices, electrical (5)
- Underwater sound equipment (7)
- Electric fence chargers (2)
- Security control equipment and systems (234)
- Christmas tree lighting sets, electric (2)
- Door opening and closing devices, electrical (29)
- Extension cords (1)
- Fireplace logs, electric (1)
- Fly traps, electrical (1)
- Electrical equipment and supplies, nec, nec (3)
- Cleaning equipment, ultrasonic, except medical and dental (16)
- Fire control or bombing equipment, electronic (2)
- Heat emission operating apparatus (1)
- Laser systems and equipment (45)
- Lead-in wires, electric lamp (3)
- Photographic control systems, electronic (1)
- Pulse amplifiers (1)
- Trouble lights (3)
