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Improved slide rule (1 янв 1859 г. – 14 ч 49 мин, 1 июл 2019 г.)

Описание:

French artillery lieutenant Amédée Mannheim invented an improved slide rule.

Добавлено на ленту времени:

Counting/Caculating Inventions

ByEmily Stark
4 ноя 2019

Дата:

1 янв 1859 г.
14 ч 49 мин, 1 июл 2019 г.
~ 160 years
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