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1 jan 1960 ano - saw the passage of legislation promotion workplace safety.

Descrição:

*The service contract act
*federal metal and nonmetallic mine safety act.
*federal coal mine and safety act
*contract workers and safety standards act.

Adicionado na linha do tempo:

part1

ByAhmed Akram Alkhashab
1 nov 2017

Data:

1 jan 1960 ano
Agora
~ 64 years ago
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