Author: | Morrell, Roger J. |
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Additional Authors: | Swanson, David E., Larson, David A. |
Year: | 1985 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:9003 |
Series: | Report of investigations / United States. Bureau of Mines ; |
Report Number: | 9003 |
Subjects: | Mining machinery |
Rock mechanics | |
Drag bits (Drilling and boring)--Testing | |
Link: | https://hdl.handle.net/2027/mdp.39015078489310 |