Printing and office machinery – Typewriter or calculator – Calculator
Patent
1983-01-05
1985-09-03
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Calculator
Patent
active
D02804182
REFERENCES:
patent: D247198 (1978-02-01), Ohie
patent: D255126 (1980-05-01), Ohie et al.
patent: D256700 (1980-09-01), Ohie
The Office, 1/82, p. 176-Sharp QS-2186 Desk-Top Calculator.
Hayashi Shigeaki
Sakaguchi Hiroshi
Sawada Masaji
Yamada Kazuo
Sharp Corporation
Zarfas Louis S,.
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