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Search U.S. government technical reports digitized or harvested by TRAIL.
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4 results returnedCarbide insert bit drilling at the Cleveland-Cliffs Iron Co. mines, Ishpeming, Mich.
Drilling and blasting, open-cut iron-ore mines, Lake Superior District
Ventilation-air heating plants of the Menominee Range
Central Mine Rescue Station, the Cleveland-Cliffs Iron Co. Mather Mine B Shaft, Negaunee, Mich.
Published Year
Subject
- Iron mines and mining--Michigan (4) *
- Carbide cutting tools (1)
- Drilling and boring machinery (1)
- Iron mines and mining--Minnesota (1)
- Iron mines and mining--Wisconsin (1)
- Mine rescue (1)
- Mine ventilation (1)
- Strip mining (1)
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