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Anthracite mechanical mining investigations.

Published Year

• 1950-1959 (1)

Subject

• Anthracite coal industry--Equipment and supplies (1)
• Coal-mining machinery (1)
• Mining machinery--Cutter bars--Testing (1)

Author

• Allan, Andrew. (1)
• Buch, John W. (1)
• Davies, Russell S. (1) *

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