Operation and maintenance of electrical equipment approved for permissibility by the Bureau of Mines

Author: Ilsley, L. C.
Year: 1922
Document Type: USBM
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.7:306
Series: Technical paper / United States Department of the Interior, Bureau of Mines ;
Report Number: 306
Subject: Electricity in mining
Link: https://hdl.handle.net/2027/mdp.39015077568320

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