73102935
Oct 12, 1976
Dec 27, 1977
RADIO RECEIVERS [ ; RADIO TRANSMITTERS; RADIO TRANSCEIVERS; AUTOMATIC SCANNING RADIOS, AMATEUR RADIO RECEIVERS, BUSINESS AND INDUSTRIAL TRANSCEIVERS; CITIZEN RADIO TRANSCEIVERS; MARINE TRANSCEIVERS; POWER AMPLIFIERS; MANUALLY TUNED RADIOS; WEATHER RADIOS; TONE TRANSMITTERS AND TONE DECODING RECEIVERS, CRYSTALS AND ELECTRONIC TEST INSTRUMENTS FOR MEASURING THE FREQUENCY OF A RADIO FREQUENCY SIGNAL, D.C. POWER SUPPLIES, AND MICROPHONES ]
Electrical and Scientific Apparatus