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6 results returnedMethod of administering leases of iron-ore deposits belonging to the state of Minnesota.
Concentration tests on tailings from the washing plants on the Mesabi Range, Minnesota
Storage of explosives in underground mines of the Lake Superior District
Transportation of iron ore, underground mines, Lake Superior district
Conveyor systems in underground iron-ore mines, Lake Superior district
Drilling and blasting, open-cut iron-ore mines, Lake Superior District
Published Year
Subject
- Iron mines and mining--Minnesota (6) *
- Iron mines and mining--Michigan (4)
- Iron mines and mining--Wisconsin (3)
- Conveying machinery (1)
- Iron leases--Minnesota--Management (1)
- Mine explosives (1)
- Mine haulage (1)
- Ore-dressing (1)
- Public lands--Minnesota (1)
- Strip mining (1)
- Tailings (Metallurgy) (1)
Author
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