Tentative bituminous-and lignite-mine inspection standards :revised September 1943

Year: 1943
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:7268
Series: Information circular ;
Report Number: 7268
Subjects: Coal mines and mining--Safety regulations--United States
Mine inspection--Standards--United States
Lignite industry--Standards--United States
Bituminous coal industry--Standards--United States
Link: https://hdl.handle.net/2027/mdp.39015074127039

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