Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent
1983-09-07
1986-07-15
Lucas, Susan J.
Recording, communication, or information retrieval equipment
Video or audio transmission, recording or playback equipment
Telephone equipment
Patent
active
D02846640
REFERENCES:
patent: D259041 (1981-04-01), Ault et al.
Computer Products, 10-1981, p. 29, IBM Personal Computer.
Davis Myron F.
Jordan, III Willis Y.
Kraus Walter F.
Yeaw Harold D.
International Business Machines - Corporation
Lucas Susan J.
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