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Study of the development of rock drill bits with special reference to the Calumet and Hecla Copper Company bits, A

Singh, Param Jit
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Advisor
Livingston, Clifton W.
Editor
Date
Date Issued
1948
Date Submitted
Keywords
Copper mines and mining -- Michigan
 Bits (Drilling and boring)
 Rock mechanics
 Rock-drills
Collections
1940-1949 - Mines Theses & Dissertations
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Singh_10781068.pdf
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https://hdl.handle.net/11124/176345
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Copyright of the original work is retained by the author.
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