ACEC
ELECTRICAL AND ELECTRONIC APPARATUS-NAMELY, MOTORS, GENERATORS, EXCITERS, FREQUENCY CHANGERS, TRANSFORMERS, REACTANCE COILS, CONDENSERS, STATIONARY AND MOBILE SUB-STATIONS, SWITCHES, CIRCUIT BREAKERS, RELAYS, STARTING AND REGULATING APPARATUS FOR MOTORS AND GENERATORS, CONTROLLERS, CONTROL PANELS, RECTIFIERS, ELECTRONIC CONTROL AND REGULATING EQUIPMENT, PARTICLE ACCELERATORS, AND DEFLECTORS, FLUORESCENT LAMPS, RADIO, TELEPHONE AND TELEVISION TRANSMITTING AND RECEIVING EQUIPMENT, SOUND RECORDI...
Expired · July 16, 1957 · 72024825 ·