Calculator case

Details Calculator case Calculator case

1991-01-08

1993-02-16

Vales-Lado, Carmen H.

Printing and office machinery

Typewriter or calculator

Calculator

D18 11

Patent

active

D03333159

REFERENCES:
patent: D280418 (1985-09-01), Hayashi et al.
patent: D308533 (1990-06-01), Sakaguchi et al.
patent: D309471 (1990-07-01), Perelli et al.
patent: D309629 (1990-07-01), Sereika et al.
patent: D315572 (1991-03-01), Sakaguchi et al.

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