Printing and office machinery – Typewriter or calculator – Calculator
Patent
1986-03-05
1989-06-27
Zarras, Louis S.
Printing and office machinery
Typewriter or calculator
Calculator
Patent
active
D03018954
REFERENCES:
patent: D279688 (1985-07-01), Kitai et al.
patent: D282853 (1986-03-01), Yoshioka et al.
patent: D285805 (1986-09-01), Yubisui et al.
patent: D289416 (1987-04-01), Yoshioka et al.
patent: D290019 (1987-05-01), Hirooka et al.
Casio Computer Co. Ltd.
Zarras Louis S.
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