Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1989-09-01
1991-09-03
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D03196372
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Westinghouse Electric Corp., Jul. 1985, p. 1, Westinghouse Accutrol 300 Frequency Control-Microprocessor. Computer Box Group 290.
Kusel Richard D.
Marotti Martin J.
Zapfe Roland
International Business Machines - Corporation
Julian H. St.
Lucas Susan J.
Nunn Freda S.
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