Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1984-03-27
1987-03-03
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02885697
REFERENCES:
patent: 3541541 (1970-11-01), Engelbart
Apple Computer Brochure, vol. 2, #1, p. 1, Mouse.
Computer Design, 9-1982, p. 275, Hawley Mouse.
Alps Electric Co. ,Ltd.
Lucas Susan J.
Shoup Guy W.
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