Historical review; various types of operating mechanisms; instructions for maintaining and testing signals; tables of operating characteristics of several signals: testing procedure; working diagrams are illustrated; list of 255 questions covering contents of pamphlet.


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    Title :

    Semaphore signals


    Additional title:

    Am Ry Signaling Principles Practices



    Publication date :

    1930


    Size :

    71 pages


    Remarks:

    87 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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