Calculator

Details Calculator Calculator

1989-05-10

1991-12-03

Holtje, Nelson C.

Printing and office machinery

Typewriter or calculator

Calculator

Patent

active

D03220885

REFERENCES:
patent: D286056 (1986-10-01), Kikuchi et al.
patent: D294151 (1988-02-01), Kuo
patent: D299251 (1989-01-01), Endo et al.
patent: D303679 (1989-09-01), Sakaguchi et al.
patent: D309623 (1990-07-01), Sawada et al.
patent: D309748 (1990-08-01), Kobayashi
Ericsson Brochure; Model No. 2104.

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