Patents for inventions. (Class 104 (i), 1916-20 (100,001 -- 155,800))


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    Title :

    Railway and tramway crossings and points and switches


    Additional title:

    Abridgments Specifications



    Publication date :

    1926


    Size :

    20 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :