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Injury experience in coal mining, 1950
General and detailed data on 1950 safety record at bituminous coal, lignite, and Pennsylvania anthracite mines, separately and combined; historical injury statistics at all coal mines from earliest available data through 1950.
Injury experience in coal mining, 1950
General and detailed data on 1950 safety record at bituminous coal, lignite, and Pennsylvania anthracite mines, separately and combined; historical injury statistics at all coal mines from earliest available data through 1950.
Injury experience in coal mining, 1950
U S Bur Mines -- Bul
Reese, S.T. (author) / Wrenn, V.E. (author) / Reid, E.J. (author)
1954
64 pages
Report
English
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Injury experience in coal mining, 1951
Engineering Index Backfile | 1955
|Injury experience in coal mining, 1952
Engineering Index Backfile | 1955
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