Installation of high-tension power circuits in coal mines

Author: Gleim, E. J.
Year: 1939
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:7044
Series: Information circular / Bureau of Mines ;
Report Number: 7044
Subject: Electricity in mining
Link: https://hdl.handle.net/2027/mdp.39015077575531

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