Earpiece with microphone

Details Earpiece with microphone Earpiece with microphone

1997-05-30

2000-02-01

Bondade, Nanda

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

D14223, D14206, 1401

Patent

active

D04200071

REFERENCES:
patent: D309305 (1990-07-01), Von Hall
patent: D311521 (1990-10-01), Jonsson et al.
patent: D371133 (1996-06-01), Andrea
patent: 4893344 (1990-01-01), Tragardh et al.
patent: 5625171 (1997-04-01), Marshall

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