Programmable synthetic-speech calculators or micro computers

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Patent

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Details

364710, G06F 316

Patent

active

041851706

ABSTRACT:
A programmable synthetic-speech calculator or micro computer operable in either a normal calculation mode or a program mode releases a sound in response to actuation of keys on a keyboard only when the calculator operates in the program mode.

REFERENCES:
patent: 4016540 (1977-04-01), Hyatt

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