Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1983-09-07
1985-11-26
Corrigan, Jane E.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02815044
REFERENCES:
patent: D224683 (1972-08-01), Wada et al.
patent: D230891 (1974-03-01), Muramatsu
patent: D232775 (1974-09-01), Eldranta et al.
patent: D236900 (1975-09-01), Larsen
patent: D277189 (1985-01-01), Shibata
Davis Myron F.
Jordan, III Willis Y.
Wysong Robert
Corrigan Jane E.
International Business Machines - Corporation
Sweeney, Jr. Harold H.
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