Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1982-08-09
1985-07-02
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02794748
REFERENCES:
patent: D250022 (1978-10-01), Pycha
Datamation, 4-1981, p. 6, Convergent Technologies Computer Keyboard.
Datamation, 4-1981, p. 149, Northern Telecom Keyboard (top, right).
Abernethy Charles N.
Akagi Kenichi
Costello John C.
Landry Christian C.
Leitermann Richard E.
Digital Equipment Corporation
Grodberg Lester S.
Lucas Susan J.
Reiling Ronald T.
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