Some small coal jigs for mechanical cleaning of coal at truck mines and other low-tonnage operations / by B.W. Gandrud and G.T. Bator.
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Corporate Authors: | , |
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Format: | Government Document Book |
Language: | English |
Published: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1943.
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Series: | Report of investigations (United States. Bureau of Mines) ;
3718. |
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Some Small Coal Jigs for Mechanical Cleaning of Coal at Truck Mines and Other Low-Tonnage Operations.
Published 1943
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