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21by Bieniawski, Z. T.Subjects: “...Coal-mining machinery....”
Published 1988
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22by Hollop, Edward E.Subjects: “...Coal-mining machinery Safety measures....”
Published 1977
Government Document Book -
23by Bhatt, Suresh K.Subjects: “...Coal-mining machinery Automation....”
Published 1991
Government Document Book -
24Use of adaptive signal processing techniques to discriminate between coal cutting and rock cutting /by Pazuchanics, M. J. (Michael J.)Subjects: “...Coal-mining machinery Automation....”
Published 1991
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25by Lombardi, John A.Subjects: “...Coal-mining machinery....”
Published 1995
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26by Sammarco, John J.Subjects: “...Coal-mining machinery Automation....”
Published 1998
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27Published 1935Subjects: “...Coal-mining machinery Law and legislation United States....”
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28
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29by Jayaraman, Natesa I.Subjects: “...Coal-mining machinery....”
Published 1977
Government Document Book -
30Subjects: “...Coal-mining machinery....”
Government Document Book -
31by Courtney, Welby G.Subjects: “...Coal-mining machinery....”
Published 1978
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32Published 1985Subjects: “...Coal-mining machinery Testing....”
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33by Sammarco, John J.Subjects: “...Coal-mining machinery Automatic control....”
Published 1990
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34
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35Subjects: “...Coal-mining machinery....”
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36Published 2014Subjects: “...Coal-mining machinery....”
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37Published 1977Subjects: “...Coal-mining machinery....”
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38by Yenchek, M. R. (Michael R.)Subjects: “...Coal-mining machinery Electric equipment....”
Published 1988
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39by Ruff, T. M.Subjects: “...Coal-mining machinery Automatic control....”
Published 1995
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40by Wancheck, G. A.Subjects: “...Coal-mining machinery Safety measures....”
Published 1976
Government Document Book