Casing for an electronic calculator

Details Casing for an electronic calculator Casing for an electronic calculator

1978-02-27

1980-07-29

Zarfas, Louis S.

Printing and office machinery

Typewriter or calculator

Calculator

D14 43, D1801

Patent

active

D02561336

REFERENCES:
patent: D196644 (1963-10-01), Beals et al.
patent: D204428 (1966-04-01), Abend et al.
patent: D230405 (1974-02-01), Jinbo
patent: D238497 (1976-01-01), Fossella et al.
The Office, Apr. 1977, p. 166, Texas Instruments Terminal at top right.

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