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Drainage of methane from the overlying Pocahontas no. 4 coalbed from workings in the Pocahontas no. 3 coalbed

Published Year

• 1970-1979 (1) *

Subject

• Coal mines and mining (1)
• Methane (1)
• Mine ventilation (1)

Author

• Cervik, Joseph, (1)
• Finfinger, Gerald L. (1) *

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