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41–50 von 2,718 Ergebnissen
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    Gasoline motor haulage

    Sylvester, George E. | Engineering Index Backfile | 1911
    Schlagwörter: Mining

    Driverless accumulator locomotives

    Recktenwald, J. | Engineering Index Backfile | 1911
    Schlagwörter: Mining

    The steam tractor hauling ore in Washington

    Perkins, Frank C. | Engineering Index Backfile | 1911
    Schlagwörter: Mining

    An accident with breathing apparatus

    Forstmann, Herr. | Engineering Index Backfile | 1913
    Schlagwörter: Mining

    Benzine locomotives

    Baijot, A.J. | Engineering Index Backfile | 1914
    Schlagwörter: Mining

    Underground locomotive haulage costs

    Baijot, A. | Engineering Index Backfile | 1914
    Schlagwörter: Mining

    Motor haulage and side tracks

    Brackett, George S. | Engineering Index Backfile | 1915
    Schlagwörter: Mining

    Gasoline locomotive haulage

    Engineering Index Backfile | 1915
    Schlagwörter: Mining