- Switchgear and switchboard apparatus (1)
- Relays and industrial controls (1)
- Commercial lighting fixtures (1)
- Household audio and video equipment (3)
- Telephone and telegraph apparatus (1)
- Radio and t.v. communications equipment (1)
- Electron tubes (1)
- Semiconductors and related devices (2)
- Electronic components, nec (2)
- Engine electrical equipment (2)
- Electrical equipment and supplies, nec (2)
