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1by Kwitowski, August J.Subjects: “...Coal-mining machinery Testing....”
Published 1983
Government Document Book -
2by Kwitowski, August J.Subjects: “...Coal-mining machinery Safety measures....”
Published 1986
Government Document Book -
3by Kwitowski, August J.Subjects: “...Coal-mining machinery Automatic control....”
Published 1992
Government Document Microform Book -
4by DuCarme, Joseph P.Subjects: “...Coal-mining machinery Appalachian Mountains Models....”
Published 1996
Government Document Microform Book