Description of interlocking installed at Saginaw, Mich, as part of project including construction of new bascule type lift bridge to replace old swing type drawbridge over Saginaw river; panel type control machine, searchlight signals, electric switch machines, and plug-in type relays, included in new plant.


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    Title :

    All-relay drawbridge interlocking installed on pere Marquette


    Additional title:

    Ry Signaling


    Published in:

    Publication date :

    1946


    Size :

    4 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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