73093606
Jul 15, 1976
Dec 19, 1978
ELECTRONIC EQUIPMENT AND COMPONENTS USED IN BROADCASTING-NAMELY, VIDEO AMPLIFIERS; AUDIO AMPLIFIERS; TELEVISION SYNCHRONIZING SIGNAL GENERATORS; TELEVISION PROCESSING AMPLIFIERS; TELEVISION MIXERS AND SWITCHERS; AUDIO MIXER AND SWITCHERS; TELEVISION AND AUDIO ROUTING SWITCHES; INTERCOM SYSTEMS COMPRISING SOUND SENDING, RECEIVING AND TRANSMISSION UNITS; TIME CODE READERS AND GENERATORS; MASTER CLOCK SYSTEMS COMPRISING PULSE CLOCK DRIVERS FOR BROADCAST STUDIOS; BROADCAST AUTOMATION SYSTEMS-NAMELY, APPARATUSES FOR USE IN PROVIDING AUTOMATIC CONTROL OF "ON AIR" SWITCHING, TELECINE PROJECTORS, VIDEO TAPE RECORDERS AND AUDIO CASSETTE RECORDERS FOR RADIO AND TELEVISION STATIONS; AUDIO TAPE RECORDERS; AND BROADCAST TURNTABLES
Electrical and Scientific Apparatus