Earphone combined with microphone

Details Earphone combined with microphone Earphone combined with microphone

1995-09-13

1997-02-04

Morris, Sandra L.

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Speaker or housing therefor

D14223

Patent

active

D03777960

REFERENCES:
patent: D337118 (1993-07-01), Seikita
patent: D350961 (1994-09-01), Nakamura
patent: 4972492 (1990-11-01), Tanaka et al.

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