Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Patent
1990-12-06
1992-12-29
Feifer, Melvin B.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Element or attachment
Patent
active
D03320987
REFERENCES:
patent: 4700397 (1987-10-01), Zimmermann et al.
ACS Headset Catalog, p. 2, FIG. 1 Ultralight Headset.
Microphones Flion, Jan. 1987, "Crystal Lapel Microphone".
Arista Catalog #734, .COPYRGT.1973, p. 12, "Shielded Guitar Cable".
Riley Raymond W.
Weber Ken R.
Wood Kenneth D.
Apple Computer Inc.
Feifer Melvin B.
Weiss Franklyn C.
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