Printing and office machinery – Typewriter or calculator – Calculator
Patent
1984-06-18
1984-07-24
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Calculator
Patent
active
D02748223
REFERENCES:
patent: D256696 (1980-09-01), Ikeda
patent: D268346 (1983-03-01), Kobayashi
patent: D269277 (1983-06-01), Yoshioka et al.
HFD-Retailing Home Furnishings, 7/14/80, section one, p. 50, Solar Calculator at bottom right.
Sakata Keiji
Yamagami Masafumi
Sharp Corporation
Zarfas Louis S,.
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