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4 results returnedHot milling of rock-drill bits at the mines of the Vinegar Hill Zinc Co., Platteville, Wis.
Mount Weather testing adit :progress report 1
Effect of lubricating agents in a diamond-drilling-bit coolant and cuttings-removal medium
Published Year
Subject
- Bits (Drilling and boring) (4) *
- Drilling and boring (3)
- Drilling muds (1)
- Rock-drills (1)
- Zinc mines and mining--Wisconsin (1)
Author
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