Electronic calculator

Details Electronic calculator Electronic calculator

1984-11-29

1986-09-23

Zarfas, Louis S.

Printing and office machinery

Typewriter or calculator

Calculator

D28 83

Patent

active

D02858053

REFERENCES:
patent: D243250 (1977-02-01), Hazama
patent: D249822 (1978-10-01), Ohie et al.
patent: D255125 (1980-05-01), Hazama et al.
patent: D258892 (1981-04-01), Ohie et al.
patent: D279688 (1985-07-01), Kitai et al.
Merchandising, 10/1983, p. 23-Panasonic Caluclator at top right.

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