73143799
Oct 6, 1977
Mar 20, 1979
[TAPE RECORDERS; CARTRIDGE AND] CASSETTE TAPE PLAYERS [;COMBINATION RADIO - TAPE PLAYERS; VIDEO RECORDERS; MICROPHONES; SPEAKERS; AMPLIFIERS; AND PARTS THE REOF; AND BLANK AND PRERECORDED MAGNETIC ANDD VIDEO TAPES]
Electrical and Scientific Apparatus