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Conical bit rotation as a function of selected cutting parameters

Published Year

• 1980-1989 (1)

Subject

• Bits (Drilling and boring)--Testing (1)
• Coal-mining machinery--Testing (1)

Author

• Hanson, Bruce D. (1)
• Myren, Theodore. (1) *
• Roepke, Wallace W. (1)
• Wingquist, Carl F. (1)

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