Explains the system in effect on the electric division of the N. Y. C. and H. R. railroad. (3500 w.) (No. 4701)


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    Title :

    Failures of signal apparatus, reporting, repairing, recording


    Additional title:

    Sig Engr


    Contributors:

    Published in:

    Publication date :

    1909


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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