British Standard Specification for Alternating-Current Line Relays (2-Element, 3-Position) for Railway Signalling Purposes.


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    Title :

    British standard specification for alternating-current line relays (2-element, 3-position) for railway signalling purposes


    Additional title:

    Brit Standards Instn -- Standard Specification



    Publication date :

    1934


    Size :

    13 pages


    Type of media :

    Standard


    Type of material :

    Print


    Language :

    English