BT
ELECTRICAL APPARATUS-NAMELY, AUDIO AND RADIO-FREQUENCY GENERATORS, AMPLIFIERS, CATHODE-RAY LIGHT PICK-UP AND DISPLAY APPARATUS, PRE-AMPLIFIER BOOSTERS, CONVERTERS, MIXER SEPARATORS, AND WEATHER-PROOF AND RADIATION-PROOF HOUSINGS FOR THE SAME; POWER-SUPPLY SYSTEMS; ANTENNAS; ELECTRICAL CONNECTORS, PLUGS, CABLES, TRANSMISSION LINES, LINE AND CABLE COUPLERS, OUTLETS, TAP-OFF CONNECTORS, MOUNTING PLATES, CONTROL BOXES, ISOLATION AND OUTLET NETWORKS, LINE SPLITTERS, IMPEDANCE-MATCHING DEVICES, FIL...
Expired · December 4, 1964 · 72207474 ·