Microphone for use with a communications device

Details Microphone for use with a communications device Microphone for use with a communications device

1992-08-27

1994-11-22

Feifer, Melvin B.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

Patent

active

D03527182

REFERENCES:
patent: D244779 (1977-06-01), Kobayashi
patent: D247668 (1978-04-01), Furst et al.
patent: D249041 (1978-08-01), Culbertson
patent: D249376 (1978-09-01), Taylor
patent: D252085 (1979-06-01), Fujita
patent: D258879 (1981-04-01), Easton et al.
patent: D299664 (1989-01-01), Ferguson et al.
patent: D307907 (1990-05-01), Siddoway et al.
patent: 4199721 (1980-04-01), Ono et al.

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