Author: Jeffrey L. Kohler
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 162
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Author: Michael R. Yenchek
Publisher:
ISBN:
Category : Electric relays
Languages : en
Pages : 32
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Author: Lloyd A. Morley
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 178
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Author: Michael R. Yenchek
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 24
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Author: Frederick C. Trutt
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 190
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Author: Michael R. Yenchek
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
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Author: United States. Bureau of Mines
Publisher:
ISBN:
Category :
Languages : en
Pages : 39
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Author:
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 130
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Provides information on the results of the Bureau of Mines Mining Research program.
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Fuel
Languages : en
Pages : 182
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Author: Welby G. Courtney
Publisher:
ISBN:
Category : Coal-cutting bits
Languages : en
Pages : 622
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