Review of progress of railroad crossing signals of Pacific Electric Railway; railroad originates new automatic flagman; cost of installation and maintenance of signals.


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    Title :

    Wig-wag warning sign protects crossings


    Additional title:

    Traction Shop Roadway


    Contributors:

    Published in:

    Publication date :

    1929


    Size :

    2 pages


    Remarks:

    1 Fig.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English