Showing 1 - 6 results of 6 for search 'Grau, Roy H.', query time: 0.04s Refine Results
  1. 1
    Analysis of acoustic responses of domal salt mine samples

    Analysis of acoustic responses of domal salt mine samples by Grau, Roy H.

    Washington, DC :; Washington, DC : Bureau of Mines, U.S. Dept. of the Interior, 1990
    Format: Government Document Book


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  2. 2
    Selected mineral deposits and their role as research locations for innovative mining techniques

    Selected mineral deposits and their role as research locations for innovative mining techniques by Grau, Roy H.

    [Washington, D.C.?] : U.S. Dept. of the Interior, Bureau of Mines, 1996
    Format: Government Document Book


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  3. 3
    Methane emissions from U.S. coal mines in 1980

    Methane emissions from U.S. coal mines in 1980 by Grau, Roy H.

    Pgh. [i.e. Pittsburgh], PA : U.S. Dept. of the Interior, Bureau of Mines, 1984
    Format: Government Document Book


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  4. 4
    Chromite deposits in the state line district of Pennsylvania and Maryland : the Red Pit example

    Chromite deposits in the state line district of Pennsylvania and Maryland : the Red Pit example by Moebs, Noel N.

    [Pittsburgh, Pa.] : U.S. Dept. of the Interior, Bureau of Mines, Pittsburgh Research Center, 1991
    Other Authors: “…Grau, Roy H.…”
    Format: Government Document Book


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  5. 5
    Economic evaluation of horizontal borehole drilling for methane drainage from coalbeds

    Economic evaluation of horizontal borehole drilling for methane drainage from coalbeds by Baker, E. C. (Eugene C.)

    Pgh. [i.e. Pittsburgh], Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1986
    Other Authors: “…Grau, Roy H.…”
    Format: Government Document Book


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  6. 6
    Economic evaluation of horizontal borehole drilling for methane drainage from coalbeds

    Economic evaluation of horizontal borehole drilling for methane drainage from coalbeds by Baker, E. C. (Eugene C.)

    Pgh. [i.e. Pittsburgh], Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1986
    Other Authors: “…Grau, Roy H.…”
    Format: Book


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