Printing and office machinery – Typewriter or calculator – Calculator
Patent
1986-04-15
1988-11-15
Zarfas, Louis S.
Printing and office machinery
Typewriter or calculator
Calculator
Patent
active
D02985454
REFERENCES:
patent: D256694 (1980-09-01), Kitai
patent: D268423 (1983-03-01), Yoshioka et al.
patent: D289416 (1987-04-01), Yoshioka et al.
patent: D290018 (1987-05-01), Hirooka et al.
patent: 4558427 (1985-12-01), Takeuchi et al.
Hasegawa Takeshi
Kobayashi Akihiko
Mori Shigeki
Takemata Keiko
Yoshioka Eiichi
Canon Kabushiki Kaisha
Zarfas Louis S,.
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