Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1992-08-14
1993-12-07
Douglas, Alan P.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03420680
REFERENCES:
patent: D260260 (1981-08-01), Thomas
patent: D264076 (1982-04-01), Adams, Jr.
patent: D266245 (1982-09-01), Thomas
patent: D301577 (1989-06-01), Morrison et al.
patent: D318306 (1991-07-01), Cheung
Asch Jeffrey
Douglas Alan P.
McCord W. Kirk
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