Active list of permissible explosives and blasting devices approved before December 31, 1957

Author: Hanna, N. E.
Additional Authors: Damon, G. H.
Year: 1958
Document Type: USBI
Issuing Agency: United States Bureau of Mines,
SUDOC: I 28.27:7832
Series: Information circular / United States. Bureau of Mines ;
Report Number: 7832
Subjects: Coal mines and mining--Safety measures
Explosives
Link: https://hdl.handle.net/2027/mdp.39015078454140

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