Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent
1978-09-22
1981-03-31
Rosen, Sam
Recording, communication, or information retrieval equipment
Computer, data processor equipment
D14 2, D14 6, D1401
Patent
active
D02587335
REFERENCES:
patent: D243345 (1977-02-01), Schellens et al.
patent: D251425 (1979-03-01), Speakman
patent: D251782 (1979-05-01), Culbertson
patent: D252512 (1979-07-01), Van Deuren
Bruce Gordon P.
Hawthorne Allen D.
Noyes deceased Eliot F.
Barksdale, Jr. James H.
International Business Machines Corp.
Rosen Sam
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