Printing and office machinery – Typewriter or calculator – Calculator
Patent
1997-01-10
1998-11-17
Veynar, Caron D.
Printing and office machinery
Typewriter or calculator
Calculator
1801
Patent
active
D04012682
REFERENCES:
patent: D269278 (1983-06-01), Yoshioka et al.
patent: D303121 (1989-08-01), Sakaguchi et al.
patent: D307917 (1990-05-01), Chen
patent: D378826 (1997-04-01), Dijkstra
Guernsey Office Supply Catalog; p. 437 C5; Scientific Calculator item "I" bottom right of page, .COPYRGT.1998.
C. van Ijsselmuide Electronic Business Gifts B.V.
Veynar Caron D.
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