73839230
Nov 14, 1989
Sep 24, 1991
RADIO RECEIVERS; TUNERS; AMPLIFIERS; TAPE RECORDERS; HEAD-PHONES; SPEAKERS; MICROPHONES; RECORD PLAYERS; AUDIO MIXERS; STYLUS; RACKS FOR RADIO RECEIVERS, TUNERS, AMPLIFIERS, TAPE RECORDERS OR RECORD PLAYERS; GRAPHIC EQUALIZERS; AUDIO TIMERS, REMOTE CONTROLLERS FOR RADIO RECEIVERS, TUNERS, AMPLIFIERS, TAPE RECORDERS OR RECORD PLAYERS; REMOTE POWER SWITCHES; ANTENNAS; [ HEAD SHELLS FOR MOUNTING PICKUP CARTRIDGES; ] CASSETTE AND ACCESSORY CASES; STANDS FOR SPEAKERS; CORDS AND CABLES FOR RADIO RECEIVERS, TUNERS, AMPLIFIERS, TAPE RECORDERS OR RECORD PLAYERS; DIGITAL AUDIO DISC PLAYERS; AUDIO DISCS, AUDIO TAPES; CASSETTE TAPES FOR TAPE RECORDERS; DIGITAL ENCODERS AND DECODERS; SOLID STATE MEMORY RECORDERS; VIDEO TAPE RECORDERS; VIDEO DISC PLAYERS AND DISCS; TELEVISION RECEIVERS; TAPE AND CASSETTE TAPES FOR VIDEO TAPES RECORDERS; [ VIDEO CAMERAS; DRYERS FOR PROTECTING TAPES FROM HUMIDITY; VIDEO TAPE WINDERS; ] MEASURING INSTRUMENTS; NAMELY, OSCILLOSCOPES; RESISTANCE ATTENUATORS; PATTERN GENERATORS; FREQUENCY COUNTERS; OSCILLATORS; RADIO-FREQUENCY SIGNAL GENERATORS; SWEEP GENERATORS; FUNCTION GENERATORS; VOLT METERS; WOW-FLUTTER METERS; FREQUENCY CHECKERS; PROBE SELECTORS FOR OSCILLOSCOPES; POWER METERS; DIP METERS; MULTI METERS; REGULATED DIRECT-CURRENT POWER SUPPLIES; STEREO SIGNAL GENERATORS; AUDIO FREQUENCY GENERATORS; REMOTE CONTROLLERS FOR OSCILLOSCOPES; OSCILLATORS VOLT METERS; MEASURING INSTRUMENT PROBES; TONE BURST GENERATORS; SPEAKER TEST GENERATORS; AUDIO SEQUENCERS; DIGITAL MEMORY-SCOPES; LOGIC ANALYZERS; TRANSCEIVERS; COMMUNICATIONS RECEIVERS; VARIABLE FREQUENCY OSCILLATORS; ANTENNA TUNERS; FREQUENCY MOBILE CONTROLLERS; DIRECT-CURRENT POWER SUPPLIES; [ DIRECT CURRENT CONVERTERS; OSCILLATORS, ] ELECTRIC TRANSCEIVER UNITS INCORPORATING FAN ELEMENTS, KNOBS, MOBILE MOUNTS, FREQUENCY MODULATORS, FILTERS, AND VOICE CONTROLS FOR TRANSCEIVERS; BATTERIES; BATTERY CHARGERS; AND CASES FOR TRANSCEIVERS; STANDS AND TONE UNITS FOR TRANSCEIVERS; [ VACUUM TUBES; ] POWER SUPPLY CORDS; CONNECTORS; RADIO FREQUENCY DUMMY LOADS FOR TESTING TRANSCEIVERS; RACKS AND STATION CONTROLS FOR TRANSCEIVERS AND COMMUNICATION RECEIVERS; RECEIVERS AND ANTENNA FOR SATELLITE COMMUNICATION; COMPUTERS; COMPUTER MEMORIES; RECORDED COMPUTER PROGRAMS IN THE COMMUNICATION FIELD; [ TELEGRAPHS; ] TELEMETERS; TELEPHONES; TELEPHONE TRANSMITTERS; [ TELEGRAPHIC TRANSMITTERS; ] TELEPHONE RECEIVERS; [ TELEPRINTERS; TELETYPEWRITERS ] AND ELECTRIC ALARM BELLS
Electrical and Scientific Apparatus