Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1988-09-09
1991-03-19
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03155536
REFERENCES:
patent: D289292 (1987-04-01), Ansell et al.
patent: D293793 (1988-01-01), Watanabe et al.
patent: D294578 (1988-03-01), Yubisui
patent: 4769764 (1988-09-01), Levanon
patent: 4837590 (1989-06-01), Sprague
patent: 4864523 (1989-09-01), Sasaki
Davis Myron F.
Kelley, Jr. Ted F.
Martin Randall W.
Takahashi Tomoyuki
Wittner Ernest
Burke Wallace R.
International Business Machines - Corporation
Kahler Mark P.
Nunn Freda S.
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