Desk-top calculator

Details Desk-top calculator Desk-top calculator

1983-01-28

1985-06-04

Zarfas, Louis S.

Printing and office machinery

Typewriter or calculator

Calculator

D14100

Patent

active

D02791064

REFERENCES:
patent: D231989 (1974-07-01), Kitai
patent: D275009 (1984-08-01), Shibata
patent: D276230 (1984-11-01), Akiyama
HFD-Retailing Home Furnishings, 10/4/82, p. 51--Tomy's Game Graphic Machine next to top.

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