Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent
1983-05-02
1985-09-03
Burke, Wallace R.
Recording, communication, or information retrieval equipment
Computer, data processor equipment
D14 62, D14 58
Patent
active
D02804034
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Black Robert J.
Burke Wallace R.
Fay Horace B.
GTE Business Communication Systems
Hendricks Gregory G.
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