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1 janv. 1870 - 1.870. Wilmot diseño un micrómetro que media milésima. J. R. Brown y Lucían Sharpe desafían el primer micrómetro mecánico, utilizando los desafíos de Palmer y Wilmot. Joseph Saxton construyo su comparador reflectante

Ajouté au bande de temps:

metrologia

ByJorge guarneros
17 juil. 2020
0
0
685

Date:

1 janv. 1870
Maintenaint
~ Il y a 155 ans
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