Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1987-09-21
1991-01-29
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03141926
REFERENCES:
patent: 2642566 (1953-06-01), Regnier
patent: 2696609 (1954-12-01), Seever
patent: 2826755 (1958-03-01), Aiken
Lucas Susan J.
Nunn Freda S.
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