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9 janv. 1867 - Se crea una ley que nombra inspectores de fábricas (Estados Unidos)
Ajouté au bande de temps:
Revisión histórica de la salud ocupacional y la seguridad industrial
By
Daniel Obando
7 déc. 2017
0
0
2653
Date:
9 janv. 1867
Maintenaint
~ Il y a 158 ans
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