Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent
1978-05-12
1980-06-17
Stearman, Joel
Recording, communication, or information retrieval equipment
Computer, data processor equipment
D1403
Patent
active
D02554488
REFERENCES:
patent: D104502 (1937-05-01), Overmyer
patent: D191206 (1961-08-01), Bateman
patent: 3972241 (1976-08-01), Valdettaro
"Dimco Plastic Knobs," Cat. #1, Supplement #1, p. 10, Item #265.
Radio Shack Fall Sale Cat., #291, p. 12, Item #21-1540, right dial with knob.
Corrigan Jane E.
Stearman Joel
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