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    Title :

    Service record of position-light signals


    Additional title:

    R S E


    Contributors:
    Rudd, A.H. (author)


    Publication date :

    1916


    Remarks:

    Ills.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Position-light signals for railroad service

    Rudd, A.H. | Engineering Index Backfile | 1917


    "Position light" signals on the Pennsylvania

    Engineering Index Backfile | 1916


    Position-light signals on Pennsylvania railroad

    Engineering Index Backfile | 1918


    The development of position-light signals

    Rudd, A.H. | Engineering Index Backfile | 1921