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National Coal Board Production Department
Diwydiant
Shunting Locomotives for Colliery Yards (booklet)
National Coal Board Production Department
2018.42/144
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Diwydiant
Outlines of Underground Locomotives (booklet)
National Coal Board Production Department
2018.42/143
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Diwydiant
Servicing of Methanometers (leaflet)
National Coal Board Production Department
2018.42/26
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Diwydiant
Layering of Firedamp in a Mine Roadway (leaflet)
National Coal Board Production Department
2018.42/164
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Diwydiant
Reciprocating Air Compressors (Surface and Underground) (booklet)
National Coal Board Production Department
The Sidney Press Ltd
2001.1/870
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Diwydiant
Economising Timber Cage Guides (booklet)
National Coal Board Production Department
2018.42/10
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Diwydiant
The Dosco Miner (booklet)
National Coal Board Production Department
2001.1/1044
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Diwydiant
Maintenance Schedule for Compressed-Air Blasting Equipment (booklet)
National Coal Board Production Department
2018.42/180
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Diwydiant
The Crossland Hinged Chute and Conveyor Control (booklet)
National Coal Board Production Department
2018.42/29
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Diwydiant
Detecting Faults from the Surface by High Resolution Gravity Surveying (booklet)
National Coal Board Production Department
2018.42/197
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Diwydiant
Dirt Disposal by Dump Truck (booklet)
National Coal Board Production Department
2018.42/84
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Diwydiant
Small Skip Plants (booklet)
National Coal Board Production Department
2001.1/1036
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