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Preventing accidents by the proper use of permissible explosives
How to use permissible explosives properly
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Published Year
1930-1939 (2)
Subject
Mine safety (2) *
Accidents--Prevention--United States (1)
Explosives (1)
Explosives industry--United States (1)
Mine accidents (1)
Author
Harrington, D. (2)
Howell, S. P. (2) *
