Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent
1977-03-17
1979-06-05
Ansher, Bernard
Recording, communication, or information retrieval equipment
Computer, data processor equipment
181199, D1401
Patent
active
D02520257
REFERENCES:
patent: D229066 (1973-11-01), Ekdahl et al.
patent: D235562 (1975-06-01), Robson
patent: D240637 (1976-07-01), O'Neil
patent: 3964571 (1976-06-01), Snell
Griffith Joseph W.
Welch Robert B.
Ansher Bernard
Olson Oliver D.
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