In order to facilitate planning of new railway telephone installations, survey of different telephone systems made by Telefonaktiebolaget L.M. Ericsson for railways is given as well as their practical application by different railway administrations.


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    Title :

    Telephone in service of railways


    Additional title:

    Ericsson Rev


    Contributors:
    Siewert, O. (author)

    Published in:

    Publication date :

    1937


    Size :

    8 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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