Printing and office machinery – Typewriter or calculator – Calculator
Patent
1980-12-03
1983-03-29
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Calculator
D18 2, D1801
Patent
active
D02684217
REFERENCES:
patent: D203766 (1966-02-01), Maifeld
patent: D226485 (1973-03-01), Kitai
patent: D233153 (1974-10-01), Saito
HFD-Retailing Home Furnishings, 2/12/1979, p. 54-Sharp Model 1168 at bottom.
Fushimoto Hideo
Hirata Takashi
Canon Kabushiki Kaisha
Zarfas Louis S,.
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