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Bureau of Mines coal cutting technology facilities at the Twin Cities Research Center
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Published Year
1980-1989 (1)
Subject
Coal mines and mining--Research--United States (1)
Coal-cutting machinery--Testing (1) *
Author
Hanson, Bruce D. (1)
Olson, Richard C. (1)
Roepke, Wallace W. (1) *
Wingquist, Carl F. (1)
