Printing and office machinery – Typewriter or calculator – Calculator
Patent
1981-12-14
1984-04-03
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Calculator
Patent
active
D02733013
REFERENCES:
patent: D263602 (1982-03-01), Yoshioka et al.
patent: D263966 (1982-04-01), Kobayashi
patent: D268346 (1983-03-01), Kobayashi
HFD-Retailing Home Furnishings, 7/14/80, Section One, p. 50-Solar Calculator PS II at bottom right.
HFD-Retailing Home Furnishings, 6/1/81, Section A, p. 19-Solar Calculator at bottom center.
Sharp Corporation
Zarfas Louis S,.
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