Microphone filter

Details Microphone filter Microphone filter

1997-09-22

1998-08-11

Shooman, Ted

Recording, communication, or information retrieval equipment

Video or audio transmission, recording or playback equipment

Element or attachment

1401

Patent

active

D03968626

REFERENCES:
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patent: D311679 (1990-10-01), Morris
patent: D377897 (1997-02-01), Vogels
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patent: 4570746 (1986-02-01), Das et al.
patent: 4768614 (1988-09-01), Case
patent: 4776019 (1988-10-01), Miyatake
patent: 4975966 (1990-12-01), Sapiejewski
patent: 5255884 (1993-10-01), O'Neill
patent: 5621846 (1997-04-01), Smith et al.

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