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Anthracite mechanical-mining investigations:progress report 7: longhole retreat mining of a steeply pitching anthracite bed

Anthracite mechanical mining investigations

Published Year

• 1950-1959 (2)

Subject

• Anthracite coal industry (2) *

Author

• Allan, Andrew. (2) *
• Cooner, John D. (1)
• Davis, Russell S. (1)
• Kaar, Paul H. (1)

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