RADIO AND TELEVISON RECEIVERS; TAPE RECORDERS; TRANSMISSION SETS FOR TELEGRAPHS AND TELEPHONES; TELEVISIONS, THERMO-ELECTRIC TRANSFORMERS; OPTOPHONES; AMPLIFIERS; REVERBERATORS; MIXERS; MICROPHONES; EARPHONES; LOUD SPEAKERS; ULTRASONIC TRANSMITTERS; TRANSFORMERS; STABILIZED AND NON-STABILIZED POWER SUPPLY UNITS; CHARGING SETS; ELECTRIC CABLE; ANTENNAS; MAGNETIC GRAM, RECORD AND TRACK SUPPORTERS; BATTERIES AND ACUMULATORS; ELECTRIC VALVES AND TUBES; TRANSISTORS; TELEVISION RECEIVER TUBES; PICTURE TUBES; ELECTRIC SWITCHES; TAPE CASSETTES; ELECTRONIC MEASURERS, CHECKERS, COUNTERS AND CONTROLLERS; TELEVISION CAMERAS; SOUND AND VIDEO RECORDINGS AND REPRODUCING MACHINES AND TAPE (BOTH BLANK AND HAVING RECORDINGS THEREON); DICTATING MACHINES; COMBINATIONS OF THE FOREGOING AND PARTS THEREOF