Active list of permissible explosives and blasting devices approved before July 1, 1970

Author: Richardson, P. A.
Additional Authors: Mason, C. M.
Year: 1970
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:8493
Series: Information circular / United States. Bureau of Mines ;
Report Number: 8493
Subjects: Coal mines and mining--Explosives
Explosives--Law and legislation--United States
Blasting
Link: https://hdl.handle.net/2027/mdp.39015078514695

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