RADIO, ELECTRICAL AND ELECTRONIC EQUIPMENT-NAMELY RECEIVERS, TRANSMITTERS, ANTENNAS, STORAGE BATTERIES, DRY CELL BATTERIES, COIL AND COIL ASSEMBLIES, CONDENSERS, VACUUM TUBES; PIEZO ELECTRIC CRYSTAL DEVICES-NAMELY, MICROPHONES, MICROPHONE REPLACEMENT CARTRIDGES, PHONOGRAPH PICKUP CELLS AND PIEZO ELECTRIC FREQUENCY CONTROLLING CRYSTALS; DIALS AND DIAL ASSEMBLIES AND PARTS THEREOF, DIAL LAMPS, PANEL LAMPS, PANELS, NEON LAMPS, AND FUSES; ELECTRICAL AND ELECTRONIC INSULATING MATERIALS IN SHEET, TUBULAR, LIQUID, FABRIC AND MOLDED FORM; JACKS, PLUGS, CONNECTORS, SOCKETS, RELAY RACKS, HEAD PHONES, AND ELECTRONIC AMPLIFIER INTEROFFICE COMMUNICATION APPARATUS; CABINETS AND CHASSIS FOR ELECTRONIC AND ELECTRICAL PURPOSES-NAMELY, METAL CABINETS, RACKS, CHASSIS AND PANELS FOR FOUNDATIONS FOR CONSTRUCTION OF ELECTRONIC APPARATUS AND WOODEN CABINETS TO HOUSE AND BAFFLE LOUD SPEAKERS; PHONOGRAPHS, SOUND RECORDERS AND PHONOGRAPH TURNTABLES, PUBLIC ADDRESS SYSTEMS, LOUD SPEAKERS, MICROPHONES AND STANDS THEREFOR, BLANK RECORDING AND TRANSCRIPTION DISKS FOR RECORDING SOUND, NOT PREGROOVED; RECTIFIERS, ELECTRICALLY HEATED SOLDERING IRONS AND PARTS THEREOF; SWITCHES, RELAYS, AND ELECTRIC EYE CONTROL SYSTEMS FOR RADIO AND ELECTRONIC PURPOSES; ELECTRONIC TIMERS AND COUNTERS FOR STARTING, STOPPING, AND CONTROLLING OTHER APPARATUS; TELEVISION RECEIVERS AND PARTS THEREOF AND ANTENNAS THEREFOR; TRANSFORMERS, ELECTRONIC, ELECTRICAL AND RADIO INVERTERS AND VIBRATORS FOR INVERTERS; RESISTORS, AND WIRE, CABLE, AND CORDS