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National Coal Board Production Department
Diwydiant
Drilling Equipment for Firedamp Drainage (booklet)
National Coal Board Production Department
2018.42/183
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Diwydiant
Hydraulic Transport of Coal at Woodend Colliery (booklet)
National Coal Board Production Department
2001.1/963
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Diwydiant
Power Loading in the Piper Seam at Brookhill Colliery (booklet)
National Coal Board Production Department
2018.42/59
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Diwydiant
Blasting in Stone Drifts (booklet)
National Coal Board Production Department
2018.42/136
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Diwydiant
Reciprocating Air Compressors (Surface and Underground) (booklet)
National Coal Board Production Department
Waterlow & Sons Ltd.
2001.1/863
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Diwydiant
Main Underground Pumping Stations (booklet)
National Coal Board Production Department
2012.45/23
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Diwydiant
Heeley "Helix" Drum for Anderton Shearer Loaders (booklet)
National Coal Board Production Department
2018.42/172
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Diwydiant
Power Loading in Difficult Geological Conditions (booklet)
National Coal Board Production Department
2018.181/17
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Diwydiant
Wear on Pneumatic Stowing Pipes amd Bends in Germany (booklet)
National Coal Board Production Department
2018.42/50
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Diwydiant
Statistics of Mechanised Output for the year 1959 (booklet)
National Coal Board Production Department
2018.42/173
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Diwydiant
Lighting of Colliery Yards and Sidings (booklet)
National Coal Board Production Department
2018.42/119
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Diwydiant
The use of Vibrating Platforms at Tub Loading Points (booklet)
National Coal Board Production Department
2018.42/105
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