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Displaying 1-2 of 2 results for author "Timko, Robert J."
Evaluation of moderately high-pressure water-jet assist applied to single drag bit tools / by J.L. Thompson, E.D. Thimons, and R.J. Timko.
- Text
- Pittsburgh, PA : U.S. Dept. of the Interior, Bureau of Mines, [1989?]
- 1989
Reducing respirable dust levels during bag conveying and stacking using bag and belt cleaner device [microform] / by Andrew B. Cecala, Robert J. Timko, and Alexander D. Prokop.
- Text
- [Washington, D.C.?] : U.S. Dept. of the Interior, Bureau of Mines, 1995.
- 1995
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