Printing and office machinery – Typewriter or calculator – Calculator
Patent
1986-01-17
1988-10-04
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Calculator
D14100
Patent
active
D02979489
REFERENCES:
patent: D269875 (1983-07-01), Ishida
patent: D278060 (1985-03-01), Kitai
patent: D279190 (1985-06-01), Yamamoto et al.
patent: D285311 (1986-08-01), Sawada
Iida Katsuhiro
Sakaguchi Hiroshi
Yubisui Takahisa
Sharp Corporation
Zarfas Louis S,.
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