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3 results returnedFalls of roof :the no. 1 killer in bituminous-coal mines
Administration of the Federal Coal-Mine Safety Act, calendar year 1956
Administration of the Federal Coal-Mine Safety Act, calendar year 1957
Published Year
Subject
- Coal mines and mining--United States--Safety measures (3) *
- Mining law--United States (2)
- Bituminous coal industry--United States--Safety measures (1)
- Mine roof control--United States (1)
Author
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