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National Coal Board Production Department
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Manriding by belt conveyor (booklet)
National Coal Board Production Department
2001.1/867
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Diwydiant
Protection of Colliery Structures against Ligtning (booklet)
National Coal Board Production Department
2018.42/179
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Traversers in Surface Mine Car Circuits (booklet)
National Coal Board Production Department
2018.42/138
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LECQ Pneumatic Equipment (booklet)
National Coal Board Production Department
2018.42/15
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Intermediate Loading Points on Troughed Gathering and Trunk Belt Conveyors (booklet)
National Coal Board Production Department
2018.42/32
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Firedamp Drainage and trials with Cross-Measure Boreholes (booklet)
National Coal Board Production Department
2018.42/189
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Drilling Methane Drainage Boreholes in Hard Strata with the Nüsse & Gräfer P.IV/6 Machine (booklet)
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2018.42/142
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Mine Car Couplers (booklet)
National Coal Board Production Department
2018.42/184
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Comparative performances of various Spray Heads used in British Coalfields (booklet)
National Coal Board Production Department
2018.42/166
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The possibilities and limits of Rotary Drilling in Carboniferous Strata (booklet)
National Coal Board Production Department
2018.42/44
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Surface Mine Car handling at Ledstone Luck Colliery (booklet)
National Coal Board Production Department
2018.42/80
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Mechanised Drifting (booklet)
National Coal Board Production Department
2018.42/45
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