Printing and office machinery – Typewriter or calculator – Calculator
Patent
1982-06-18
1985-10-29
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Calculator
Patent
active
D02811715
REFERENCES:
patent: D258740 (1981-03-01), Matsumoto
patent: D273200 (1984-03-01), Sakata
HFD-Retailing Home Furnishings, 7/14/80, Section One p. 50-Petrous Solaris PS-1 Calculator at bottom.
HFD-Retailing Home Furnishings, 3/30/81, Section One, p. 48-Sanyo Solar Calculator at top.
Sakata Keiji
Yamagami Masafumi
Sharp Corporation
Zarfas Louis S,.
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