Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1992-02-06
1998-03-31
Tung, M. H.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
1402
Patent
active
D03929493
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Inmac Computer Catalog Item Disk p. 4.
Maioli Jay M.
Sony Corporation
Tung M. H.
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