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Stemming in metal mines.

Stemming in metal mines.

Stemming in metal mines :progress report 6 : relative advantages and disadvantages of different types of stemming and no stemming when used with 40 percent ammonia gelatin dynamite at the Mount Weather testing adit

Published Year

• 1940-1949 (3)

Subject

• Blasting (3)
• Mine safety (3) *

Author

• Agnew, Wing G. (3) *
• Johnson, John A. (3)
• Mosier, McHenry. (2)

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