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National Coal Board Training Branch
Diwydiant
The Deputy's Handbook (booklet)
National Coal Board Training Branch
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Mine Gases (booklet)
National Coal Board Training Branch
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2001.1/796
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National Coal Board Training Branch
2001.1/873
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Transport Underground (booklet)
National Coal Board Training Branch
2001.1/486
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National Coal Board Training Branch
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Diwydiant
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National Coal Board Training Branch
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Diwydiant
Health and Safety at Work Act Course for Safety Representatives, notes
National Coal Board Training Branch
2001.1/967
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Diwydiant
The Support of the Roof in the Roadway (booklet)
National Coal Board Training Branch
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