Interesting comments on track construction in the Philadelphia subway. (1200 w.) (73241)


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    Title :

    Unballasted track gives 50 per cent lower maintenance cost


    Additional title:

    El R Jl


    Contributors:


    Publication date :

    1916


    Remarks:

    Ills.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :




    Low-first-cost low-maintenance-cost track

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