Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1990-05-15
1993-04-13
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D18 7
Patent
active
D03347362
REFERENCES:
patent: D305535 (1990-01-01), Sakaguchi et al.
patent: D308049 (1990-05-01), Dennett
patent: D309601 (1990-07-01), Sawada et al.
patent: D317440 (1991-06-01), Sawada et al.
Nishida Koji
Sawada Masaji
Burke Wallace R.
Nunn Freda S.
Sharp Corporation
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