- High-energy particle physics equipment (1)
- Accelerating waveguide structures (1)
- Electrical welding equipment (2)
- Laser welding, drilling, and cutting equipment (2)
- Electric sound equipment (1)
- Underwater sound equipment (1)
- Security devices (14)
- Security control equipment and systems (4)
- Household electrical equipment (2)
- Door opening and closing devices, electrical (1)
- Cleaning equipment, ultrasonic, except medical and dental (1)
- Fire control or bombing equipment, electronic (2)
- Laser systems and equipment (3)
