Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1988-02-12
1990-11-20
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D15 72
Patent
active
D03122450
REFERENCES:
patent: D303788 (1989-10-01), Kondoh et al.
patent: D305754 (1990-01-01), Soren
patent: 4218755 (1980-08-01), Root
patent: 4446520 (1984-05-01), Shigeta et al.
patent: 4692871 (1987-09-01), Kinoshita et al.
patent: 4703432 (1987-10-01), Muller
Janome Sewing Machine Co. Ltd.
Lucas Susan J.
Nunn Freda S.
Striker Michael J.
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