Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1983-03-02
1986-06-17
Zarfas, Louis S.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D18 12
Patent
active
D02842858
REFERENCES:
patent: D148458 (1948-01-01), Clary et al.
patent: 3986014 (1976-10-01), Katsui et al.
Telefonaktiebolaget LM Ericsson
Zarfas Louis S,.
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