73817902
Aug 8, 1989
May 8, 1990
AUDIO RECORDING AND PLAYBACK APPARATUS [ FFOR ] * FOR * THE PROCESSING, CONTROL, STORAGE, AND SWITCHING OF DIGITAL AUDIO SIGNALS, AND ASSOCIATED KEYBOARD AND VIDEO DISPLAY, FOR USE IN AUDIO BROADCASTING, BACKGROUND MUSIC, RADIO STATIONS, THEATRES, STADIA, AND THE LIKE
Electrical and Scientific Apparatus