SONOCRAFT
ELECTRICAL MACHINES AND PARTS THEREOF FOR RECORDING AND REPRODUCING SOUND AND MAGNETIZED RECORDS FOR USE THEREWITH; PICK-UPS, AMPLIFIERS, MICROPHONES, AND PARTS THEREOF; SPEAKERS AND LOUD SPEAKERS; CABINETS WITH BUILT-INELECTRICAL INSTRUMENTS FOR SOUND RECORDING AND REPRODUCING; ELECTRICAL DISC CHANGERS, OTHER THAN HEARING-AIDS, ELECTRIC BATTERIES, PHONOGRAPH PICK-UPS, PIEZOELECTRIC CERAMICS AND AMPLIFIER TUBES
Expired · February 20, 1953 · 71642573 ·
