Calculator

Details Calculator Calculator

1991-07-15

1993-01-19

Holtje, Nelson C.

Printing and office machinery

Typewriter or calculator

Calculator

Patent

active

D03326209

REFERENCES:
patent: D310095 (1990-08-01), Noguchi
patent: D318287 (1991-07-01), Tsukamoto
patent: D319083 (1991-08-01), Sullivan
patent: D327297 (1992-06-01), Anawalt
patent: 3638944 (1972-02-01), McQueen
Potpourri, p. 19, calculator, top left of page.
The Music Stand, p. 9, pallet calculator, bottom right.
Design, Mar. 1991, p. 26, calculator, bottom left of page.

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