Patents for inventions; abridgments intended to serve as guides to specifications. (class 104 (ii))


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    Title :

    Railway and tramway permanent way other than crossings and points and switches, and railway and tramway systems other than electric


    Additional title:

    Abridgments Specifications



    Publication date :

    1929


    Size :

    100 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English






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    Valentine Ball, W. | Engineering Index Backfile | 1903


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    Lütz, Christoph | IuD Bahn | 2011


    Isolating switch for electric railway or tramway

    DAVID ROBERT TANNER / DEAN SMITH / ANDREW HUNT | European Patent Office | 2025

    Free access