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Active list of permissible explosives and devices approved previous to June 30, 1943

Some suggestions on care in the use and handling of explosives in coal mines

Tests on the ignition of natural gas-air mixtures by permissible explosives in the experimental coal mine

Published Year

• 1940-1949 (3) *

Subject

• Coal mines and mining--Explosives (3) *
• Blasting--United States (1)
• Explosives (1)
• Explosives--Safety measures (1)
• Explosives--United States (1)

Author

• Fitzgerald, Lloyd G.. (1)
• Gaugler, Z. C. (1)
• Greenwald, H. P. (1)
• Hartmann, Irving. (1)
• Howarth, H. C. (1)
• Nagy, John. (1)
• Tiffany, J. E. (1)

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