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Preliminary analysis of methodologies for mining thin-seam mountaintop coal resources / by William D. Mayercheck, Jasinder S. Jaspal, and Richard B. Farrar (Information circular ; 9270)

Preliminary analysis of methodologies for mining thin-seam mountaintop coal resources / by William D. Mayercheck, Jasinder S. Jaspal, and Richard B. Farrar (Information circular ; 9270)
Microform図書
1990<YCA-I 28.27:9270>
National Diet Library
  • Author HeadingMayercheck, William D Jaspal, Jasinder S Farrar, Richard B United Stat...

Surface testing and evaluation of the multiple-unit continuous haulage system / by Jasinder S. Jaspal, Lee A. Erhard, and William D. Mayercheck (Information circular ; 9228)

Surface testing and evaluation of the multiple-unit continuous haulage system / by Jasinder S. Jaspal, Lee A. Erhard, and William D. Mayercheck (Information circular ; 9228)
Microform図書
1989<YCA-I 28.27:9228>
National Diet Library
  • Author HeadingJaspal, Jasinder S Erhard, Lee A Mayercheck, Wil...

Surface testing and evaluation of the conveyor belt service machine / by Jasinder S. Jaspal and Lawrence F. Miller (Information circular ; 9190)

Surface testing and evaluation of the conveyor belt service machine / by Jasinder S. Jaspal and Lawrence F. Miller (Information circular ; 9190)
Microform図書
1988<YCA-I 28.27:9190>
National Diet Library
  • Author HeadingJaspal, Jasinder S Miller, L. F United States. B...

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