Electronic calculator

Details Electronic calculator Electronic calculator

1998-12-08

1999-11-09

Veynar, Caron D.

Printing and office machinery

Typewriter or calculator

Calculator

1801

Patent

active

D04162803

REFERENCES:
patent: D377190 (1997-01-01), Matsuda
patent: D383773 (1997-09-01), Tamaki et al.
patent: D394449 (1998-05-01), Shimizu
patent: D408440 (1999-04-01), Matsuda et al.

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