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Active list of permissible explosives and blasting devices approved before December 31, 1951

Published Year

• 1950-1959 (1) *

Subject

• Blasting--Equipment and supplies--Law and legislation--United States (1)
• Explosives--Law and legislation--United States (1)
• Mining engineering--Equipment supplies--Law and legislation--United States (1) *

Author

• Damon, G. H. (1)
• Hanna, N. E. (1) *

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