Method of using color light signals and relay interlocking, combined with speed signaling aspects; layout at Messukyla junction, between three single line routines.


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    Title :

    Relay interlocking in Finland


    Additional title:

    Ry Gaz


    Published in:

    Railway Gazette ; 105 , n 24


    Publication date :

    1956


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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