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Falls of roof and coal in mines operating in the Pittsburgh Coal Bed, Panhandle District, West Virginia

Falls of roof in mines operating in the Pittsburgh Coal Bed, West Virginia

Published Year

• 1930-1939 (2)

Subject

• Coal mine accidents (2) *
• Coal mines and mining--West Virginia (2) *

Author

• Geyer, John Nicholas, (2)
• Paul, J. W. (2)

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