Additional Authors: | Anderson, Floyd G., Harmon, John P., Johnson, Leslie., Westfield, James., Owings, C. W. |
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Year: | 1951 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:7615 |
Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 7615 |
Subjects: | Mine roof bolting |
Coal mines and mining--Dust control | |
Link: | https://hdl.handle.net/2027/mdp.39015078456087 |