Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Patent
1992-09-03
1993-12-14
Douglas, Alan P.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Element or attachment
Patent
active
D03422615
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patent: D333466 (1993-02-01), Chung
patent: 4694485 (1987-09-01), Iwase
Grewe Anthony J.
Harden Daniel K.
Schiefer Sonja
Shiozaki Steven J.
Stowers David C.
Asch Jeffrey
AT&T Bell Laboratories
Douglas Alan P.
Morra Michael A.
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