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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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9 jan 1867 ano - Se crea una ley que nombra inspectores de fábricas (Estados Unidos)
Adicionado na linha do tempo:
Revisión histórica de la salud ocupacional y la seguridad industrial
By
Daniel Obando
7 dez 2017
0
0
2653
Data:
9 jan 1867 ano
Agora
~ 158 years ago
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