Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Video
Patent
1992-05-04
1993-11-23
Douglas, Alan P.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Video
Patent
active
D03415864
REFERENCES:
patent: D277957 (1985-03-01), Read
patent: D279563 (1985-07-01), Menei et al.
patent: D283890 (1986-05-01), Britz et al.
patent: D304726 (1989-11-01), Brooks et al.
patent: D324036 (1992-02-01), Wakasa
patent: D333304 (1993-02-01), Taniuchi et al.
patent: 4720849 (1988-01-01), Tayama
Alvarez-Ryan Maria G.
Crouch Paul E.
Kasbekar Pratod V.
Lee Bernard T.
Marks Jonathan A.
Asch Jeffrey
AT&T Bell Laboratories
Douglas Alan P.
Williamson Samuel R.
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