Automatic interlocking installed in Holdenville, Okla, at crossing with Chicago, Rock Island and Pacific Railroad; notes on complicated track layout, special signal arrangement, control circuit, and route relays.


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    Title :

    Automatic interlocking installed by St. Louis-San Francisco


    Additional title:

    Ry Signaling


    Published in:

    Publication date :

    1941


    Size :

    4 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English