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jan 1, 1672 - Ruda de Leibniz.

Description:

Es un tambor con forma de cilindro, con un conjunto de dientes de longitud incremental a la que se le acopla una rueda de conteo.

Added to timeline:

karelies y astrid

19 Oct 2017

0

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497

Date:

jan 1, 1672

Now

~ 354 years ago

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