Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1987-02-13
1990-06-05
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D14115
Patent
active
D03083608
REFERENCES:
patent: D270729 (1983-09-01), Lahey et al.
patent: D272624 (1984-02-01), Genaro et al.
patent: D278063 (1985-03-01), Chamberlain et al.
patent: D281246 (1985-11-01), Lenzi, Jr.
patent: D287249 (1986-12-01), Lindhe
Datamation, 6-1983, p. 126 (Keyboard).
International Business Machines - Corporation
Lucas Susan J.
Nunn Freda S.
Poag F. D.
Walker Mark S.
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