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Review of State Mine Inspector's Reports as They Relate to Accidents from Falls of Roof

Method and Cost of Mining the Thick Freeport Coal in a Second Western Pennsylvania Mine

Published Year

• 1920-1929 (2)

Subject

• Coal mine accidents. (1)
• Coal mines and mining -- Pennsylvania -- Armstrong County. (1)
• Coal mines and mining. (1)

Author

• Paul, James Washington (2) *

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