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5 gen 1890 anni - Se generaliza la legislación que protege la sociedad y a los trabajadores contra riesgos laborales (mundialmente)
Aggiunto al nastro di tempo:
Revisión histórica de la salud ocupacional y la seguridad industrial
By
Daniel Obando
7 dic 2017
0
0
2504
Data:
5 gen 1890 anni
Adesso
~ 135 years ago
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