A study of the development and present status of automatic and remote control track switches. (4000 w.) (89608)


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    Title :

    Automatic track switches release men for other work


    Additional title:

    Elec Ry Jl


    Contributors:
    Cram, R.C. (author)


    Publication date :

    1918


    Remarks:

    Ills.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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