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Diamond-drilling blast holes, eastern Magnetite Mine A

Blast-hole diamond drilling in California mines

Published Year

• 1940-1949 (2) *

Subject

• Boring (2) *
• Boring machinery (1)
• Diamond bits (1)
• Magnetite (1)
• Mines and mineral resources (1)
• Mines and mineral resources--California (1)
• Rock-drills (1)

Author

• Butner, D. W. (1)
• Mosier, McHenry. (1)

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