U.S. federal trademark · Serial No. 71169824 · Reg. No. 0167591
RADIO RECEIVING, DETECTING, AND TRANSMITTING SETS AND PARTS THEREOF; CRYSTAL RECEIVING SETS, REGENERATIVE RECEIVING SETS, RADIO AND AUDIO FREQUENCY AMPLIFIERS, LOUD SPEAKERS, DETECTOR, AMPLIFIER, TRANSMITTING, AND RECTIFYING VACUUM TUBES; VACUUM TUBE SOCKETS, RADIO AND AUDIO FREQUENCY TRANSFORMERS, RHEOSTATS, GRID LEAKS, GRID CONDENSERS, INDUCTANCE AND COUPLING COILS, FIXED AND VARIABLE CONDENSERS, INSULATORS, CRYSTAL DETECTORS AND MOUNTINGS, ANTENNAE AND ANTENNAE EQUIPMENT, ANTENNAE PROTECTORS, LOOP ANTENNAE, TELEPHONE PLUGS AND JACKS, AND ELECTRICAL SWITCHES
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