Electronic calculator

Details Electronic calculator Electronic calculator

1986-04-16

1989-01-03

Zarfas, Louis S.

Printing and office machinery

Typewriter or calculator

Combined

D18 7

Patent

active

D02992507

REFERENCES:
patent: D293920 (1988-01-01), Yubisui et al.
patent: D294282 (1988-02-01), Hung
Webcor Model NS319PPC, flyer.

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