Printing and office machinery – Typewriter or calculator – Calculator
Patent
1985-05-03
1987-06-16
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Calculator
Patent
active
D02903741
REFERENCES:
patent: D250430 (1978-11-01), Nishiguchi
patent: D261398 (1981-10-01), Hirata et al.
patent: D279108 (1985-06-01), Sawada
patent: D279188 (1985-06-01), Satake
patent: D281886 (1985-12-01), Sawada et al.
patent: D284288 (1986-06-01), Satake
Satake Noriko
Yubisui Takahisa
Sharp Corporation
Zarfas Louis S,.
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