Microphone

Details Microphone Microphone

1985-09-13

1988-06-07

Ansher, Bernard

Recording, communication, or information retrieval equipment

Computer, data processor equipment

Patent

active

D02961008

REFERENCES:
patent: D190864 (1961-07-01), Deschamps
patent: D205403 (1966-08-01), Wilson
patent: D247707 (1978-04-01), Armstrong
patent: D253468 (1979-11-01), Peterson
patent: 4633045 (1986-12-01), Bartlett
Radio Shack 1986 Catalog No. 393, .COPYRGT.1985, p. 48, top left-Dual-Pattern Electret; bottom left-Realistic Highball-7.

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