- Household audio equipment (4)
- Amplifiers: radio, public address, or musical instrument (7)
- Audio electronic systems (18)
- Loudspeakers, electrodynamic or magnetic (4)
- Microphones (1)
- Music distribution apparatus (3)
- Radio receiving sets (2)
- Recording machines, except dictation and telephone answering (2)
- Sound reproducing equipment (6)
- Speaker monitors (1)
- Speaker systems (7)
- Television receiving sets (1)
- Electronic kits for home assembly: radio, TV, phonograph (1)
- Home entertainment equipment, electronic, nec (4)
