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Nôl i Ganlyniadau
National Coal Board Production Department
Diwydiant
Intermediate Loading Points on Troughed Gathering and Trunk Belt Conveyors (booklet)
National Coal Board Production Department
2018.42/42
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Diwydiant
Shuttle Meco-Moore in operation at Thoresby Colliery (booklet)
National Coal Board Production Department
2018.42/82
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Diwydiant
Stone Preparation for Power Stowing (booklet)
National Coal Board Production Department
2018.42/38
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Diwydiant
The Dosco Miner (booklet)
National Coal Board Production Department
2001.1/1044
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Diwydiant
Some aspects of Cage Winding in the Ruhr (booklet)
National Coal Board Production Department
2018.42/20
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Diwydiant
Some experiments in Fluorescent Lighting on the Coal Face (booklet)
National Coal Board Production Department
2018.42/13
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Diwydiant
Man-riding Underground by Rope and Locomotive Haulage (booklet)
National Coal Board Production Department
Straker Brothers Ltd.
2001.1/859
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Diwydiant
The use of Prestressed Concrete (leaflet)
National Coal Board Production Department
2018.42/101
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Diwydiant
Basic Face End Layouts (booklet)
National Coal Board Production Department
2001.1/928
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Diwydiant
Pneumatic Stowing from the Surface at Crookhall Colliery (booklet)
National Coal Board Production Department
2018.42/130
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Diwydiant
Rapid Installation of an Armoured Conveyor on a Prop-Free Front (booklet)
National Coal Board Production Department
2001.1/1037
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Automatic Rope Haulage Clip for attachment to Mine Cars (booklet)
National Coal Board Production Department
2018.42/66
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