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jan 1, 1821 - Русский математик и механик Пафнутий Львович Чебышев (1821-1894)

Description:

создает суммирующий аппарат с непрерывной передачей десятков

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Работа 1 (задание 1)

ByДаша Костоломова

8 Oct 2017

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753

Date:

jan 1, 1821

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~ 204 years ago

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