Microphone

Details Microphone Microphone

1999-07-02

2000-10-17

Bondade, Nanda

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

1401

Patent

active

D04321197

REFERENCES:
patent: D177895 (1956-06-01), Burroughs
patent: D187987 (1960-05-01), Kellogg
patent: D199398 (1964-10-01), Freeman
patent: D296435 (1988-06-01), Kubota
patent: D299921 (1989-02-01), Kikutani
patent: D313802 (1991-01-01), Peiker
patent: D387770 (1997-12-01), Liao
patent: 3459902 (1969-08-01), Warning

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