Symbols for power apparatus, instruments and relays, electric traction, car-control wiring and railway signals.


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    Title :

    Report on standards for graphical symbols used for electric traction including railway signalling


    Additional title:

    Am. Inst. Elec. Engrs. -- Report



    Publication date :

    1931


    Remarks:

    Numerous Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English