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Cofnodion â delweddau yn unig
Chwilio
Nôl i Ganlyniadau
National Coal Board Production Department
Diwydiant
Some tests on Yielding Props in German Collieries (booklet)
National Coal Board Production Department
2018.42/52
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Diwydiant
Equipment at the 1958 Essen Mining Exhibition (booklet)
National Coal Board Production Department
2018.42/162
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Diwydiant
Pneumatic Stowing from the Surface at Donisthorpe Colliery (booklet)
National Coal Board Production Department
2018.42/126
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Diwydiant
German designed Mine Car Tipplers (booklet)
National Coal Board Production Department
2018.42/18
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Diwydiant
A modern Surveying Instrument for Secondary Surveys (booklet)
National Coal Board Production Department
2018.42/25
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Diwydiant
A Combined Gearhead for Bottom Loading Belt Conveyors on Double Unit Faces (booklet)
National Coal Board Production Department
2018.42/53
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Diwydiant
The Holman "Silver Three" Wet-Drilling Machine with "Autolock" Backhead (booklet)
National Coal Board Production Department
2018.42/149
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Diwydiant
Relating a Roadway Belt Conveyor to its Duty (booklet)
National Coal Board Production Department
2018.42/154
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Diwydiant
Code of Practice for Explosives Attendants (booklet)
National Coal Board Production Department
2001.1/848
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Diwydiant
A device for negotiating Face disturbances with a Scraper Chain Conveyor (booklet)
National Coal Board Production Department
2018.42/36
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Diwydiant
Statistics of Mechanised Output for the year ended March 1966 (booklet)
National Coal Board Production Department
2018.42/204
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Diwydiant
Investigation of Mining Subsidence Phenomena (booklet)
National Coal Board Production Department
2018.42/63
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