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Search U.S. government technical reports digitized or harvested by TRAIL.
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6 results returnedRoof bolting in the United States
Falls of roof :the no. 1 killer in bituminous-coal mines
Permissible mine equipment approved during the calendar years 1953-54
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 (6) *
- Mining law--United States (2)
- Bituminous coal industry--United States--Safety measures (1)
- Mine roof bolting (1)
- Mine roof control--United States (1)
- Mine safety--United States--Equipment and supplies (1)
- Mines safety--United States--Equipment and supplies (1)
Author
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