Printing and office machinery – Typewriter or calculator – Calculator
Patent
1987-04-30
1990-06-19
Holtje, Nelson C.
Printing and office machinery
Typewriter or calculator
Calculator
Patent
active
D03086933
REFERENCES:
patent: D269356 (1983-06-01), Yoshioka et al.
patent: D273200 (1984-03-01), Sakata
patent: D295875 (1988-05-01), Yubisui et al.
Office Products Dealer, Oct. 1985, p. 17.
Iida Katsuhiro
Sakaguchi Hiroshi
Holtje Nelson C.
Sharp Corporation
Veynar Caron D.
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