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In-mine installation of passive water barriers

Published Year

• 1980-1989 (1)

Subject

• Coal mines and mining--Pennsylvania--Indiana--Safety measures (1) *
• Mine dusts (1) *

Author

• Cheng, Lung. (1)
• Furno, A. L. (1)
• Malcolm, Dennis R. (1)
• Pro, Richard. (1)

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