Patents for inventions; abridgments intended to serve as guides to specifications. (class 118 (ii), period 1921-25)


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    Title :

    Signals (including marine signals)


    Additional title:

    Abridgments Specifications



    Publication date :

    1928


    Size :

    259 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Signals including marine signals

    Engineering Index Backfile | 1925


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    Wiedemann, G. | Engineering Index Backfile | 1955



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