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1by Sammarco, John J.Subjects: “...Coal-mining machinery Automatic control....”
Published 1988
Government Document Book -
2by Sammarco, John J.Subjects: “...Coal-mining machinery Automation....”
Published 1998
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Government Document eBook -
3by Sammarco, John J.Subjects: “...Coal-mining machinery Automatic control....”
Published 1990
Government Document Book -
4by Sammarco, John J.Subjects: “...Coal-mining machinery Automatic control Testing....”
Published 1993
Government Document Microform Book