Electronic calculating machine

Details Electronic calculating machine Electronic calculating machine

1977-09-06

1978-09-26

Lucas, Susan J.

Printing and office machinery

Printing equipment

Hand held or manipulated

D1801

Patent

active

D02497425

REFERENCES:
patent: D229065 (1973-11-01), Maeda et al.
patent: D238951 (1976-02-01), Herr et al.
patent: 3996428 (1976-12-01), Buan et al.
Office Products, Apr. 1974, p. 62, Mod. BC-0808B, Electronic Calculator.
Office Products, May 1975, p. 70, Eight Digit Pocket Calculator.

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