- Telephone and telegraphic equipment (5)
- Mobile telephone equipment (8)
- Telephone equipment (17)
- Communication equipment (22)
- Electronic tubes: receiving and transmitting, or industrial (2)
- Facsimile equipment (13)
- Intercommunication equipment, electronic (3)
- Modems, computer (4)
- Paging and signaling equipment (7)
- Sound equipment, electronic (14)
- Electronic parts (30)
- Resistors, electronic (1)
- Semiconductor devices (2)
- Transformers, electronic (1)
- Radio and television equipment and parts (2)
- Citizens band radios (2)
- Closed circuit TV (2)
- Radio parts and accessories, nec (3)
- Video equipment, electronic (7)
- Security control equipment and systems (17)
- Tapes, audio and video recording (2)
