Various types of circuit controlling fences and other devices developed and employed to warn of rock falls, slides, bridge failures and fires in tunnels and snow sheds; experience has shown that at points installed these devices have proved desirable, effective and justified from safety standpoint.


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    Titel :

    Protective devices increase safety of operation on southern pacific


    Weitere Titelangaben:

    Ry Eng Maintenance


    Erschienen in:

    Railway Engineering and Maintenance ; 36 , n 6 ; p 374-377 + 381


    Erscheinungsdatum :

    1940


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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