21 AMPLIFIERS, INCLUDING DIRECT-CURRENT, ALTERNATING-CURRENT, AUDIO-FREQUENCY, RADIO-FREQUENCY, POWER AND DECADE AMPLIFIERS, PARTS THEREOF, AND CONSOLES, HOUSINGS AND CARRYING CASES THEREFOR; RADIO-WAVE RECEIVING APPARATUS INCLUDING AMPLITUDE, PHASE AND FREQUENCY-MODULATION TUNERS, OSCILLATORS, CONVERTERS AND MULTIPLEX CIRCUITS; RADIO-FREQUENCY, NOISE AND ACOUSTIC GENERATING APPARATUS AND PARTS THEREOF; ELECTRIC-WAVE FILTERS, NETWORKS, ATTENUATORS, ELECTRIC CABLES, ELECTROMECHANICAL AND ELECTROACOUSTICAL TRANSDUCERS INCLUDING MICROPHONES AND LOUDSPEAKERS; POWER, AUTO, HIGH-VOLTAGE, RADIOFREQUENCY, AUDIO-FREQUENCY AND FILAMENT TRANSFORMERS; AND INDUCTORS AND REACTORS INCLUDING MULTI-TAPPED INDUCTORS; AND STEREOPHONIC RECEIVING AND REPRODUCING APPARATUS, AND PARTS THEREOF
Trademark: 72293313
