Portable calculator

Printing and office machinery – Typewriter or calculator – Calculator

Patent

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Details Portable calculator Portable calculator

: 1978-10-13
: 1981-03-03
: Zarfas, Louis S.
: Printing and office machinery
: Typewriter or calculator
: Calculator

: D1801
: Patent
: active
: D02584514
: REFERENCES:
patent: D218485 (1970-08-01), Grange
patent: D228784 (1973-10-01), Kital
patent: D237216 (1975-10-01), Bellini

Affiliated with

Bellini Mario

Inventor

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Also associated with

Ing. C. Olivetti & C. S.p.A.

Corporate Assignee

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Schuyler, Jr. William E.

Representative

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Zarfas Louis S,.

Examiner

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