Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1988-10-20
1990-05-29
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D19 52
Patent
active
D03081982
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patent: D284084 (1986-06-01), Ferrara, Jr.
patent: 3876831 (1975-04-01), Wickham et al.
patent: 3980266 (1976-09-01), Jones
patent: 4455451 (1984-06-01), Kriz
patent: 4618119 (1986-10-01), Powell
Summagraphics Corp., Feb. 6, 1986-The MM 1812 Digitizer Computer Box.
Akagi Kenichi
Tedham Thomas A.
Lucas Susan J.
Milik Kenneth L.
Nunn Freda S.
Shanahan Michael H.
Wang Laboratories, Inc.
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