Headphone-style microphone

Details Headphone-style microphone Headphone-style microphone

1986-01-03

1989-01-31

Ansher, Bernard

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

D14223

Patent

active

D02996430

REFERENCES:
patent: Re30662 (1981-06-01), Foley
patent: D159223 (1950-07-01), Olson
patent: D287849 (1987-01-01), O'Malley et al.
patent: 3128352 (1964-04-01), Cagen
CQ The Radio Amateur's Journal, Jul. 1984, p. 103-right center, Pro-Com 350.

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