A system of supporting railroad rails on a continuous line of inverted trough-shaped girders, invented by Samuel E. Duff, is illustrated and described. (1200 w.)


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    Title :

    Steel railroad substructure


    Additional title:

    R R Gaz


    Published in:

    Publication date :

    1904


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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