73204216
Feb 15, 1979
May 19, 1981
Tape Recorders and Parts Thereof-Namely, Magnetic Tapes, Tape Cassettes, Microphones, Speakers, Cords, Level Meters, Voice Actuators which Switch a Tape Recorder On When It Senses a Sound and Off When the Sound Stops, Batteries, AC Filters and Carrying Cases
Electrical and Scientific Apparatus