Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1979-10-15
1982-05-18
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
D1402
Patent
active
D02644665
REFERENCES:
patent: D182698 (1958-04-01), Wells
patent: D238282 (1975-12-01), Shawen et al.
patent: D248648 (1978-07-01), Clayton et al.
patent: 4027142 (1977-05-01), Paup et al.
patent: 4113331 (1978-09-01), Derdzinski
Davis Arnold M.
Schaum David L.
International Business Machines - Corporation
Lucas Susan J.
Poag Frederick D.
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