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Development of a rotary test drill

Safe storage, handling, and use of commercial explosives in metal mines, nonmetallic mines, and quarries :revision of Information circular 7380

Recovery of ultrafine mineral values :a progress report

Limestone and dolomite

Published Year

• 1950-1959 (4) *

Subject

• Mines and mineral resources (4) *
• Mineral industries (2)
• Dolomite (1)
• Drilling and boring (1)
• Explosives--Safety measures (1)
• Limestone (1)
• Mine valuation (1)
• Mining engineering (1)

Author

• Bowles, Oliver, (1)
• Brackel, Lewis H. (1)
• Cochran, A. A. (1)
• East, J. H., (1)
• Harrington, D. (1)
• Kershner, K. K. (1)
• Wright, Fred D. (1)

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