Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1983-09-15
1986-05-27
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02840090
REFERENCES:
patent: D270911 (1983-10-01), Endt
Computer Design, 1-1981, p. 29, Digital Engineering VT100 Terminal, Keyboard.
Computer Design, 4-1981, p. 94, Ann Arbor Terminals, Inc., Keyboard (right).
Computer Design, 4-1981, p. 106, Texas Instruments, Video Display Terminal Keyboard.
International Business Machines - Corporation
Lucas Susan J.
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