An analysis of the use of electricity at coal mines.

Author: Jones, Frank A.
Additional Authors: Thomas, Edward., Toenges, Albert L., Maize, Earl R.
Year: 1942
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.23:3615
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number: 3615
Subjects: Coal mines and mining--Equipment and supplies
Coal-handling machinery
Link: https://hdl.handle.net/2027/mdp.39015078495093

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