73473095
Mar 30, 1984
Aug 20, 1985
PHONOGRAPH PICKUPS; PHONOGRAPH PICKUP CARTRIDGES; PHONOGRAPH TONE ARMS; PHONOGRAPH STYLI; PHONOGRAPH STYLUS FORCE GAUGES; PHONOGRAPH TEST RECORDS; PHONOGRAPH STYLUS INSPECTION INSTRUMENTS - NAMELY, MICROSCOPES; MICROPHONES; MICROPHONE CARTRIDGES; MICROPHONE CABLES; MICROPHONE TRANSFORMERS; VIBRATION PICKUP TRANSDUCERS; TELEPHONE HANDSETS; LOUDSPEAKERS; ELECTRONIC CONSOLES; MICROPHONE MIXER AMPLIFIERS; PREAMPLIFIERS; POWER AMPLIFIERS; EQUALIZATION AMPLIFIERS; LIMITING AMPLIFIERS; ISOLATION AMPLIFIERS; AUDIO ELECTRONIC SYSTEMS COMPRISING MICROPHONES, PREAMPLIFIERS, CONSOLES, AMPLIFIERS, EQUALIZERS AND LOUDSPEAKERS; STANDS, COVERS, CARRYING CASES, TRANSFORMERS AND CABLES FOR MICROPHONES, CONSOLES, AMPLIFIERS AND LOUDSPEAKERS; TELECONFERENCING SYSTEMS COMPRISING MICROPHONES, MICROPHONE MIXERS, AMPLIFIERS, TELEPHONE LINE COUPLERS, LOUDSPEAKERS, AND CONTROL CONSOLES; AND PARTS AND FITTINGS THEREFOR
Electrical and Scientific Apparatus