Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1987-04-13
1990-04-10
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D14114, D19 52
Patent
active
D03071340
REFERENCES:
patent: D276732 (1984-12-01), Marquez
patent: 4638118 (1987-01-01), Wang et al.
patent: 4639720 (1987-01-01), Rympalski et al.
patent: 4785564 (1988-11-01), Gurtler
Fahrney's Catalog 1977, p. 19-Pen and Pad (J101T).
Lucas Susan J.
Nunn Freda S.
Sharp Corporation
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