- Mobile telephone equipment (8)
- Telephone equipment (12)
- Teletype equipment (1)
- Communication equipment (20)
- Amateur radio communications equipment (1)
- Electronic tubes: receiving and transmitting, or industrial (1)
- Facsimile equipment (1)
- Intercommunication equipment, electronic (1)
- Paging and signaling equipment (4)
- Sound equipment, electronic (6)
- Electronic parts (7)
- Semiconductor devices (2)
- Radio and television equipment and parts (4)
- Radio parts and accessories, nec (3)
- Video equipment, electronic (3)
- Security control equipment and systems (25)
- Tapes, audio and video recording (4)
