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Evaluating ventilation parameters of three coal mine gobs / by R.J. Timko, F.N. Kissell, and E.D. Thimons (Information circular ; 9109)

Evaluating ventilation parameters of three coal mine gobs / by R.J. Timko, F.N. Kissell, and E.D. Thimons (Information circular ; 9109)
Microform図書
1986<YCA-I 28.27:9109>
National Diet Library
  • Author HeadingTimko, Robert J Kissell, Fred N Thimons, Edward D United Stat...

Improved shearer-clearer system for double-drum shearers on longwall faces / by Natesa I. Jayaraman, Robert A. Jankowski, and Fred N. Kissell (Bureau of Mines report of investigations ; 8963)

Improved shearer-clearer system for double-drum shearers on longwall faces / by Natesa I. Jayaraman, Robert A. Jankowski, and Fred N. Kissell (Bureau of Mines report of investigations ; 8963)
Microform図書
1985<YCA-I 28.23:8963>
National Diet Library
  • Author HeadingJayaraman, Natesa I Jankowski, Robert A Kissell, Fred N United States. Bureau of Mine...

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