Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent
1981-04-30
1983-11-08
Ansher, Bernard
Recording, communication, or information retrieval equipment
Computer, data processor equipment
D21111, D1403
Patent
active
D02713004
REFERENCES:
patent: D216883 (1970-03-01), Katzman
patent: D225413 (1972-12-01), Scoggins
patent: D250023 (1978-10-01), Perkins et al.
patent: 4087650 (1978-05-01), Tucker
Ansher Bernard
Wong James A.
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