The cleaning of fine coal from the Mary Lee Bed at the Porter Mine

Author: Richardson A. C.
Additional Authors: Gandrud, B. W.
Year: 1933
Document Type: BMRA
Issuing Agency: U.S. Dept. of Commerce, Bureau of Mines,
SUDOC: C 22.12:3209
Series: Report of investigations / United States Department of Commerce, Bureau of Mines ;
Report Number: 3209
Subject: Coal washing
Link: https://hdl.handle.net/2027/mdp.39015077562950

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