Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent
1983-12-09
1987-03-31
Rademaker, Charles A.
Recording, communication, or information retrieval equipment
Computer, data processor equipment
D14 33
Patent
active
D02890402
REFERENCES:
patent: 2955669 (1960-10-01), Rice
patent: 4083426 (1978-04-01), Peugh
patent: 4299304 (1981-11-01), Rebsch
Barnard Ralph R.
Brown Michael F.
Rademaker Charles A.
Shooman Theodore M.
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