State regulations pertaining to the use of internal-combustion engines underground

Author: Holtz, J. C.
Additional Authors: Gleim, E. J.
Year: 1957
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:7789
Series: Information circular / United States. Bureau of Mines ;
Report Number: 7789
Subjects: Internal combustion engines--Safety measures
Mine safety--United States
Link: https://hdl.handle.net/2027/mdp.39015078459933

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