Condensed article by Thomas S. Stevens, in the Santa Fe Employees' Mag. Explains the purposes for which signals are used. The present number reviews the past history of interlocking signals. (Serial. 1st part) (1600 w.) (No. 33401 C)


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    Titel :

    Railway signaling


    Weitere Titelangaben:

    Ry Loc Engng



    Erscheinungsdatum :

    1912


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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