A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Outline of development of system adopted at Superior mines of Union Pacific Coal Co, Rock Springs, Wyo, following introduction of mechanical loading.
Benefits derived from systematic timbering in coal mines
Rocky Mt. Coal Min Inst -- Proc
Brown, G. (author)
Rocky Mountain Coal Mining Institute -- Meeting ; 1935
1935
3 pages
Conference paper
English
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