Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1986-11-12
1989-10-10
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D18 7
Patent
active
D03039552
REFERENCES:
patent: D258654 (1981-03-01), Levy
patent: D258655 (1981-03-01), Levy
patent: D274798 (1984-07-01), O'Hara et al.
patent: D297949 (1988-10-01), Yubisui et al.
Business Communication Products Division/3M-Nov. 1983, p. 1 (3M Whisper Reader Communications Terminal).
Koyama Keiichi
Shiozawa Hajime
Lucas Susan J.
Selma-Nunn Freda
Sharp Kabushiki Kaisha
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