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Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
8 results returnedActive list of permissible explosives and blasting devices approved prior to June 30, 1940
Active list of permissible explosives and blasting devices approved prior to June 30, 1941
Active list of permissible explosives and blasting devices approved prior to June 30, 1942
Active list of permissible explosives and blasting devices approved before December 31, 1951
Active list of permissible explosives and blasting devices approved before Jan. 1, 1965
Active list of permissible explosives and blasting devices approved before December 1, 1967
Active list of permissible explosives and blasting devices approved before July 1, 1970
Published Year
Subject
- Explosives--Law and legislation--United States (8) *
- Blasting--Equipment and supplies--Law and legislation--United States (4)
- Coal mines and mining--Explosives (4)
- Mining engineering--Equipment supplies--Law and legislation--United States (4)
- Blasting (2)
Author
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