// todo need optimize like in event.jsp. Add indexing or not indexing this page. Improved slide rule (1 gen 1859 anni – 14 ore 49 min, 1 lugl 2019 anni) (Il nastro del tempo)
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Improved slide rule (1 gen 1859 anni – 14 ore 49 min, 1 lugl 2019 anni)

Descrizione:

French artillery lieutenant Amédée Mannheim invented an improved slide rule.

Aggiunto al nastro di tempo:

Counting/Caculating Inventions

ByEmily Stark
4 nov 2019

Data:

1 gen 1859 anni
14 ore 49 min, 1 lugl 2019 anni
~ 160 years
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