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Chwilio
Nôl i Ganlyniadau
National Coal Board Production Department
Diwydiant
Number of Holes and the Charge per Round in Stone Drifts (booklet)
National Coal Board Production Department
2001.1/1038
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Diwydiant
Cable Belt Conveyors (booklet)
National Coal Board Production Department
2018.42/92
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Diwydiant
Statistics of Mechanised Output for the year ended March 1965 (booklet)
National Coal Board Production Department
2018.42/203
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Diwydiant
Diesel Locomotive Outlines (booklet)
National Coal Board Production Department
2018.42/9
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Diwydiant
Longwall Working with a Scraper Bucket at Mossfield Colliery (booklet)
National Coal Board Production Department
2018.42/111
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Diwydiant
Testing of Colliery Wire Ropes (booklet)
National Coal Board Production Department
2018.42/127
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Diwydiant
Charging and Changing of Locomotive Batteries underground (booklet)
National Coal Board Production Department
2018.42/148
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Diwydiant
Statistics relating to Mechanised Output for 1958 (booklet)
National Coal Board Production Department
2018.42/165
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Diwydiant
Gun-Type Fastening Tools (booklet)
National Coal Board Production Department
2018.42/75
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Diwydiant
Automatic Control of Pumps (booklet)
National Coal Board Production Department
2018.42/33
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Diwydiant
Servicing of Dust Respirators (leaflet)
National Coal Board Production Department
2018.42/178
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Diwydiant
Whale-Type Coalcutter Jibs (booklet)
National Coal Board Production Department
2018.42/120
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