Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1987-11-10
1990-06-05
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D14100
Patent
active
D03083640
REFERENCES:
patent: D136660 (1943-11-01), Kiser
patent: 2734099 (1956-02-01), Cahoon et al.
patent: 3705956 (1972-12-01), Dertouzos
patent: 4475239 (1984-10-01), van Raamsdonk
patent: 4555699 (1985-11-01), Citron et al.
patent: 4814760 (1989-03-01), Johnston et al.
Beasley, Jr. Tom
Milly Peter F.
Tybergein Michael B.
Data Entry Systems, Inc.
Lucas Susan J.
Nunn Freda S.
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