Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1990-04-25
1992-08-11
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03285960
REFERENCES:
patent: D301142 (1989-05-01), Chu
patent: D305331 (1990-01-01), Esslinger
patent: D305649 (1990-01-01), Lin
patent: D306017 (1990-02-01), Shulman et al.
patent: D307137 (1990-04-01), Alfonso
Burke Wallace R.
Cockburn Joscelyn G.
International Business Machines - Corporation
Nunn Freda S.
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