Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1991-09-26
1994-03-08
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03449335
REFERENCES:
patent: D303661 (1989-09-01), Manabe et al.
patent: D312630 (1990-12-01), Esslinger
patent: D313405 (1991-01-01), Barry et al.
patent: D317912 (1991-07-01), Takai
patent: D319435 (1991-08-01), Brown
patent: 4438458 (1984-03-01), Munscher
Rodd Timothy J.
Wiseman John A.
Yamazaki Kazuhiko
Aker David
Burke Wallace R.
International Business Machines - Corporation
Nunn Freda S.
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