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Improved slide rule (1 janv. 1859 – 14 h 49 min, 1 juill. 2019 ans)

Description:

French artillery lieutenant Amédée Mannheim invented an improved slide rule.

Ajouté au bande de temps:

Counting/Caculating Inventions

4 nov. 2019

0

0

360

Date:

1 janv. 1859

14 h 49 min, 1 juill. 2019 ans

~ 160 years

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