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    Title :

    Light signals replacing semaphores


    Additional title:

    Ry. Signaling


    Published in:

    Publication date :

    1925


    Size :

    3 pages


    Remarks:

    12 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English






    From semaphores to semiconductors

    British Library Online Contents | 1996


    THE ADMIRALTY TELEGRAPHS AND SEMAPHORES

    Mead, Hilary P. | Taylor & Francis Verlag | 1938


    Electric lighting of semaphores

    Stilwell, W.H. | Engineering Index Backfile | 1936