Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1987-12-31
1990-09-25
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03108260
REFERENCES:
patent: D227994 (1973-07-01), Keenan
patent: D232126 (1974-07-01), Conway et al.
patent: D233608 (1974-11-01), Conway et al.
patent: D242469 (1976-11-01), Arnold et al.
patent: D251872 (1979-05-01), Schultz et al.
Lucas Susan J.
Nunn Freda S.
OKI Electric Industry Co., Ltd.
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