Desk-top electronic calculator

Details Desk-top electronic calculator Desk-top electronic calculator

1985-05-24

1987-04-21

Zarfas, Louis S.

Printing and office machinery

Typewriter or calculator

Calculator

Patent

active

D02894190

REFERENCES:
patent: D256695 (1980-09-01), Yamagami
patent: D268421 (1983-03-01), Hirata et al.
patent: D281171 (1985-10-01), Yamagami et al.
patent: D284771 (1986-07-01), Tamada et al.
HFD-Retailing Home Furnishings, 6/1/81, Section A, p. 9-Memowriter 7001 at bottom right.

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