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Roof truss contact forces / by J.H. Stears and M.O. Serbousek (Bureau of Mines report of investigations ; 9162)

Roof truss contact forces / by J.H. Stears and M.O. Serbousek (Bureau of Mines report of investigations ; 9162)
Microform図書
1988<YCA-I 28.23:9162>
National Diet Library

Measurement of coal-cutting forces underground with the in-seam tester / by Laxman S. Sundae (Bureau of Mines report of investigations ; 9033)

Measurement of coal-cutting forces underground with the in-seam tester / by Laxman S. Sundae (Bureau of Mines report of investigations ; 9033)
Microform図書
1985<YCA-I 28.23:9033>
National Diet Library

Electrical ignition energies and thermal autoignition temperatures for evaluating explosion hazards of dusts / by Martin Hertzberg, Ronald S. Conti, and Kenneth L. Cashdollar (Bureau of Mines report of investigations ; 8988)

Electrical ignition energies and thermal autoignition temperatures for evaluating explosion hazards of dusts / by Martin Hertzberg, Ronald S. Conti, and Kenneth L. Cashdollar (Bureau of Mines report of investigations ; 8988)
Microform図書
1985<YCA-I 28.23:8988>
National Diet Library

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

Analyses of crude oils from 470 important oilfields in the United States/ by C. M. McKinney and E. L. Garton. (United States Bureau of Mines. Report of investigations ; 5376)

Analyses of crude oils from 470 important oilfields in the United States/ by C. M. McKinney and E. L. Garton. (United States Bureau of Mines. Report of investigations ; 5376)
Paper図書
U.S. Dept. of the Interior, Bureau of Mines1957.<665.5-M158a>
National Diet Library

Analyses of tipple and delivered samples of coal : collected during fiscal year. (Report of investigations - Bureau of Mines)

Analyses of tipple and delivered samples of coal : collected during fiscal year. (Report of investigations - Bureau of Mines)
Paper図書
U.S. Dept. of Interior, Bureau of Mines; for sale by the Supt. of Docs., U.S. Govt. Print. Off.1950.<PD251-10>
National Diet Library

Report of investigations.

Report of investigations.
Paper図書
U.S. Dept. of the Interior, Bureau of Mines1919.<PD71-13>
National Diet Library
  • Alternative TitleMonthly reports of investigations RI Bureau of Mines report of investigations
  • Alternative TitleMonthly reports of investigations RI Bureau of Mines report of investigations

Report of investigations.

Report of investigations.
Paper図書
U.S. Dept. of the Interior, Bureau of Mines1919.<PD71-13>
National Diet Library
  • Alternative TitleMonthly reports of investigations RI Bureau of Mines report of investigations
  • Alternative TitleMonthly reports of investigations RI Bureau of Mines report of investigations

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