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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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5 janv. 1890 - Se generaliza la legislación que protege la sociedad y a los trabajadores contra riesgos laborales (mundialmente)
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:
5 janv. 1890
Maintenaint
~ Il y a 135 ans
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