A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Places of occurrence of injury from falls of roof
Compilation of statistics bearing on frequency and place of occurrence of accidents; regulations and practices which have resulted in low frequency rate from falls of roof and coal, information being derived from mine accident reports and from results of studies in 80 mines in bituminous coal fields of western Pennsylvania, Ohio and West Virginia.
Places of occurrence of injury from falls of roof
Compilation of statistics bearing on frequency and place of occurrence of accidents; regulations and practices which have resulted in low frequency rate from falls of roof and coal, information being derived from mine accident reports and from results of studies in 80 mines in bituminous coal fields of western Pennsylvania, Ohio and West Virginia.
Places of occurrence of injury from falls of roof
U S Bur Mines -- Report Investigations
Paul, J.W. (author) / Sibray, D.L. (author)
1933
12 pages
Supp plates
Report
English
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