Printing and office machinery – Typewriter or calculator – Calculator
Patent
1992-07-28
1994-10-25
Holtje, Nelson C.
Printing and office machinery
Typewriter or calculator
Calculator
D14100, D18 2
Patent
active
D03518531
REFERENCES:
patent: D243250 (1977-02-01), Hazama
patent: D317780 (1991-06-01), Arai
patent: D317935 (1991-07-01), Sawano
patent: D325571 (1992-04-01), Sakaguchi et al.
patent: D334020 (1993-03-01), Takahata
Casio Computer Co. Ltd.
Holtje Nelson C.
Veynar Caron D.
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