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21 janv. 1799 - 1799 Se deposita en los primeros archivos de Francia el primer prototipo del metro, formado por una regla de platino sin inscripciones ni marcas
Ajouté au bande de temps:
Metrología
By
Erick Piña
12 janv. 2018
0
0
1622
Date:
21 janv. 1799
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~ Il y a 226 ans
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