A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
United States. Coal-mine fatalities in the United States 1927
Causes of fatalities in 1927, by States and months; principal causes of accidents; principal explosions; explosives; electricity; fatalities and coal production, by months; method of calculating number of man-hours; safety competition.
United States. Coal-mine fatalities in the United States 1927
Causes of fatalities in 1927, by States and months; principal causes of accidents; principal explosions; explosives; electricity; fatalities and coal production, by months; method of calculating number of man-hours; safety competition.
United States. Coal-mine fatalities in the United States 1927
U. S. Bureau Mines -- Bul
Adams, W.W. (author)
1927
120 pages
Report
English
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