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Improved slide rule (1 Jan 1859 Jahr – 14 St. 49 Min, 1 Jul 2019 Jahr)

Beschreibung:

French artillery lieutenant Amédée Mannheim invented an improved slide rule.

Zugefügt zum Band der Zeit:

Counting/Caculating Inventions

4 Nov 2019

0

0

360

Datum:

1 Jan 1859 Jahr

14 St. 49 Min, 1 Jul 2019 Jahr

~ 160 years

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