TELEVISION BROADCASTING EQUIPMENT-NAMELY, TELEVISION TRANSMITTERS AND RECEIVERS, TELEVISION TRANSLATORS, STILL PICTURE TRANSMISSION APPARATUSES; TELEVISION STUDIO EQUIPMENT-NAMELY, MONOCHROME AND COLOR TELEVISION CAMERAS, SYNC-SIGNAL GENERATORS, VIDEO MIXERS, VIDEO MONITORS, VIDEO TAPE RECORDERS, VIDEO DISC RECORDERS, VIDEO DISC PLATTERS, AUDIO AND VIDEO CONTROL AND MIXING CONSOLES, SPECIAL EFFECTS GENERATORS, STABILIZING AMPLIFIERS; TELEVISION CINEMA EQUIPMENT-NAMELY, CINEMA FILM CAMERAS, FILM PROJECTORS, OPAQUE PROJECTORS; RADIO BROADCASTING EQUIPMENT-NAMELY, RADIO TRANSMITTERS AND RECEIVERS, TRANSCEIVERS; GENERAL COMMUNICATION EQUIPMENT-NAMELY, RADIO DIRECTION FINDERS, RADIO BEACON TRANSMITTERS, RADIO MONITORING APPARATUSES; TELEPHONE APPARATUS-NAMELY, TELEPHONE SETS, TELEPHONE EXCHANGERS, SWITCHBOARDS, INTERPHONES; WIRED COMMUNICATION APPARATUS-NAMELY, TELEGRAPH TRANSMITTERS AND RECEIVERS, TYPEWRITERS CAPABLE OF TYPING MESSAGES TRANSMITTED OVER GEOGRAPHIC DISTANCCES, FACSIMILE TRANSMITTERS AND RECEIVERS, PICTURE TRANSMITTERS AND RECEIVERS, TELEGRAPH SWITCHING APPARATUSES, MODULATOR-DEMODULATORS; CARRIER APPARATUS-NAMELY, OPEN WIRE CARRIERS, CABLE CARRIERS, POWER LINE CARRIERS, VOICE FREQUENCY TRANSMITTERS, AIRCRAFT, NAUTICAL AND MOTOR VEHICLE TRANSMITTERS AND RECEIVERS; MICROWAVE RELAY EQUIPMENT-NAMELY, MICROWAVE TELEVISION TRANSMITTERS AND RECEIVERS, PARABOLIC ANTENNAE; COMMUNITY ANTENNA EQUIPMENT-NAMELY, CABLE TELEVISION APPARATUSES, PROGRAM SELECTORS, MASTER ANTENNAE, TELEVISION SIGNAL TRANSMISSION LINES, TELEVISION RECEIVERS; MILLIMETER WAVE CIRCUIT DEVICES-NAMELY, WAVE GUIDES, BRANCHING FILTERS, CIRCULATORS, MIXERS, WAVE SWEEP OSCILLATORS, WAVE TEST INSTRUMENTS, LOW NOISE DIODE MIXERS, SYNTHESIZED SWEEPERS, OSCILLOSCOPES WITH MEMORY; ELECTRONIC PARTS-NAMELY, COLOR AND BLACK-AND-WHITE TELEVISION PICTURE TUBES, OSCILLOGRAPH TUBES, VIDICONS, POWER TUBES, MAGNETRONS, LIQUID CRYSTAL DISPLAY DEVICES FOR USE AS READOUT APPARATUSES ON ELECTRONIC EQUIPMENT, CORE AND BUBBLE MEMORIES, POWER SUPPLY BRIDGE RECTIFIERS AND POWER MODULES; SEMI-CONDUCTOR DEVICES-NAMELY, INTEGRATED CIRCUIT AND FUNCTION APPARATUSES, SILICON TRANSISTORS, THERMISTORS, DIODES, GLASSIVATED SILICON DIODES, THYRITORS, GTO THYRISTORS; APPLIED ELECTRONIC MACHINERY AND APPARATUS-NAMELY, ELECTRONIC ACCELERATORS, HYDROPHONES, MAGNETIC OBJECT DETECTORS, GEIGER COUNTERS, CYCLOTRONS, ELECTRONIC MICROSCOPES, APPLIED ULTRASONIC DETECTORS; DISPLAY DEVICES-NAMELY, COMPUTER CATHODE RAY TUBE GRAPHIC DISPLAYS, CATHODE RAY TUBE DISPLAY COPIERS; COMPUTER EQUIPMENT-NAMELY, ELECTRONIC COMPUTERS, MAGNETIC TAPE DATA RECORDERS, MAGNETIC DISC DATA RECORDERS, MAGNETIC DRUM DATA RECORDERS, INPUT-OUTPUT DATA PROCESSORS, COMPUTER PERIPHERAL APPARATUS, OPTICAL CHARACTER READERS, SIMULATORS, OPTO-ELECTRONIC FLAW INSPECTIOS APPARATUS, RELAYS, PUSH BUTTONS; TEACHING DEVICES-NAMELY, RESPONSE ANALYZERS FOR TEACHING MACHINES; AND DUPLICATING EQUIPMENT-NAMELY, PHOTO-ELECTRIC COPIERS AND PARTS AND COMPONENTS THEREOF