Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1986-05-30
1989-01-03
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02992353
REFERENCES:
patent: D228137 (1973-08-01), Chadima, Jr.
patent: D239287 (1976-03-01), Ault
patent: D258956 (1981-04-01), Chadima, Jr.
patent: D283711 (1986-05-01), Deura et al.
patent: D292401 (1987-10-01), Lee et al.
patent: 4005388 (1977-01-01), Morley et al.
'Feger Stephan
Fischer Wolfgang
Hesse Karl O.
International Business Machines - Corporation
Lucas Susan J.
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