Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent
1982-08-30
1985-07-30
Bullock, B. J.
Recording, communication, or information retrieval equipment
Computer, data processor equipment
D13 32
Patent
active
D02798972
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patent: D271297 (1983-11-01), Gonsson
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patent: 4176257 (1979-11-01), De Luca
patent: 4290661 (1981-09-01), Burns
Neuwirth Helmuth
Rubio George S.
Bullock B. J.
Fay Horace B.
Porta Systems Corp.
Temko Charles E.
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