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Development of a rotary test drill

Limestone and dolomite

Published Year

• 1950-1959 (2) *

Subject

• Mineral industries (2) *
• Mines and mineral resources (2)
• Dolomite (1)
• Drilling and boring (1)
• Limestone (1)
• Mining engineering (1)

Author

• Bowles, Oliver, (1)
• Brackel, Lewis H. (1)
• Wright, Fred D. (1)

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