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Design and development of drill equipment

Gas migration characteristics of coalbeds

Published Year

• 1960-1969 (2) *

Subject

• Coal mines and mining (2)
• Boring machinery (1)
• Methane (1)
• Mine gases (1)
• Mine ventilation (1)

Author

• Hadden, J. D. (2) *
• Cervik, Joseph, (1)
• Sainato, Albert, (1)

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