Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1983-11-29
1985-06-11
Zarfas, Louis S.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D18 7
Patent
active
D02791889
REFERENCES:
patent: D228915 (1973-10-01), Ishii
patent: D233442 (1974-10-01), Saito
patent: D250430 (1978-11-01), Nishiguchi
The Office, 1/82, p. 176, Desk-top Calculator QS-1183 at center.
Sharp Corporation
Zarfas Louis S,.
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