Author: | Gleim, E. J. |
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Additional Authors: | Freeman, Howard Bassett, |
Year: | 1932 |
Document Type: | USBM |
Issuing Agency: | U.S.Bureau of Mines, |
SUDOC: | C 22.5:537 |
Series: | Technical paper / United States. Bureau of Mines ; |
Report Number: | 537. |
Subjects: | Coal mines and mining--Safety measures |
Electricity in mining | |
Link: | https://hdl.handle.net/2027/mdp.39015077565631 |