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ISBN:
Category :
Languages : en
Pages : 35
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Author: John Edwards Crawshaw
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ISBN:
Category : Coal mines and mining
Languages : en
Pages : 46
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Author: Spencer P. Howell
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ISBN:
Category : Coal mines and mining
Languages : en
Pages : 24
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Author:
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ISBN:
Category : Coal mines and mining
Languages : en
Pages : 26
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Author: United States. Bureau of Mines
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Category : Mine tools
Languages : en
Pages : 6
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Author: Spencer Pritchard Howell
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Category :
Languages : en
Pages : 22
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Author: John Edward Crawshaw
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ISBN:
Category : Coal mines and mining
Languages : en
Pages : 30
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Author: United States. Congress. House. Committee on Labor
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Category : Accidents
Languages : en
Pages : 84
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Category : Mineral industries
Languages : en
Pages : 998
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Author: Earl Carlton Lane
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Category : Blast furnaces
Languages : en
Pages : 632
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