Order of the Czech Mining Office No. 52 / 1997 Coll.
Order of the Czech Mining Office laying down requirements to ensure safety and health at work and safety of operation in the disposal of main mining works
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01.10.2015
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28.03.1997
MINULE_NEUCINNE
Effective from 28.03.1997
to 30.04.1997
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01.10.2015
01.07.2011
Unknown regulation
01.12.2004
01.04.2000