A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Introductory description of Wheelwright coal mine in Big Sandy Elkhorn district in eastern Kentucky; details of bit facing practice, utilizing "borod" as hard facing material. Before Ill Min Inst.
Introductory description of Wheelwright coal mine in Big Sandy Elkhorn district in eastern Kentucky; details of bit facing practice, utilizing "borod" as hard facing material. Before Ill Min Inst.
Hard-facing mining machine bits
Min Congress J
Parker, J. (author)
1936
2 pages
Article (Journal)
English
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