Development of centralized traffic control; car retarders; automatic interlocking; highway crossing signals; calculated results of proposed installations.


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    Title :

    Economics of modern signaling


    Additional title:

    Ry Signaling


    Published in:

    Publication date :

    1933


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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