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Causes of roof-fall fatalities in anthracite and bituminous-coal mines, 1955 and 1956
Study includes analysis of individual accident reports, sets forth measurable factors, and compares such factors with representative sample of average data from 39 anthracite mines and 117 bituminous mines.
Causes of roof-fall fatalities in anthracite and bituminous-coal mines, 1955 and 1956
Study includes analysis of individual accident reports, sets forth measurable factors, and compares such factors with representative sample of average data from 39 anthracite mines and 117 bituminous mines.
Causes of roof-fall fatalities in anthracite and bituminous-coal mines, 1955 and 1956
US Bur Mines -- Information Cir
Joseph, R.D. (author)
1958
26 pages
Report
English
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