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Liquid carbon dioxide used to extinguish a gob fire in a German coal mine

Studies of roof movement in coal mines.

Published Year

• 1930-1939 (2) *

Subject

• Carbon dioxide (1)
• Coal mines and mining--Germany (1)
• Coal mines and mining--Pennsylvania (1)
• Mine fires--Germany (1)
• Mine roof control (1)

Author

• Hartmann, Irving (2) *
• Greenwald, H. P. (1) *
• Maize, E. R. (1)
• Rice, G. S. (1)
• Rice, George S. (1)

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