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20 mars 1922 - JORNADA LABORAL DE 8 HS.

Description:

La Conferencia Internacional de la Organización Internacional del Trabajo establece la jornada laboral de 8 hs. en todo el mundo

Ajouté au bande de temps:

TP Evolucion historica del trabajo

ByFranchu
8 nov. 2018
0
0
632

Date:

20 mars 1922
Maintenaint
~ Il y a 103 ans
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