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Mining and grinding methods and costs at the Claycraft Company shale pit, Taylor Station, Columbus, Ohio

Mining and grinding methods and costs at the L.W. Camp Co. shale pit, Akron, Ohio

Mining and grinding methods and costs at the Camp Brothers Company shale pit, Mogadore, Ohio

Published Year

• 1930-1939 (3) *

Subject

• Mines and mineral resources--Ohio (3)
• Shale--Ohio (3) *

Author

• Lintner, E. J. (3) *

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