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Active list of permissible explosives and blasting devices approved previous to December 31, 1945

Active list of permissible explosives and blasting devices approved previous to December 31, 1945 :supplement

Published Year

• 1940-1949 (2)

Subject

• Explosives (2) *

Author

• Gaugler, Z. C. (2) *
• Tiffany, J. E. (2)

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