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National Coal Board Production Department
Diwydiant
Underground Trolley Locomotive Installations in the Ruhr (booklet)
National Coal Board Production Department
2018.42/4
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Diwydiant
Use of a Gummer Bar (leaflet)
National Coal Board Production Department
2018.42/100
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Diwydiant
The protection of Buildings against Earth Movements (booklet)
National Coal Board Production Department
2018.42/86
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Diwydiant
Pithead Power Plant in Germany and Holland (booklet)
National Coal Board Production Department
2018.42/1
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Diwydiant
Hardened Steel Pipes for Pneumatic Stowing (booklet)
National Coal Board Production Department
2018.42/158
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Diwydiant
The Anderton Shearer Loader (booklet)
National Coal Board Production Department
2018.42/108
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Diwydiant
A.B. Longwall Trepanner (booklet)
National Coal Board Production Department
2001.1/1040
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Diwydiant
Method Study in the Coal Industry (booklet)
National Coal Board Production Department
Oxley Press Limited
2001.1/980
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Diwydiant
Statistics relating to Mechanised Output (booklet)
National Coal Board Production Department
2018.42/151
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Diwydiant
Modern Gateroad Supports in Germany (booklet)
National Coal Board Production Department
2018.42/51
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Diwydiant
Feeder Conveyors from Face to Gate Roads (booklet)
National Coal Board Production Department
2001.1/1034
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Diwydiant
Planning the Ventilation of New or Reorganised Collieries (booklet)
National Coal Board Production Department
2001.1/1033
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