Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1987-02-12
1989-08-01
Holtje, Nelson C.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D10 46, D18 36
Patent
active
D03025519
REFERENCES:
patent: D228152 (1973-08-01), Matwey
patent: D237830 (1975-11-01), Van Acker
patent: D295613 (1988-05-01), Tanner
New Equipment Digest, Apr. 1985, p. 39.
Hewlett Packard Technical Data, Aug. 1985, front cover.
Leong David W.
Longust Timothy A.
Hewlett--Packard Company
Holtje Nelson C.
Veynar Caron D.
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