Ground-glass lens with five-watt lamp gives color-light signal indication at 4,000 ft.


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    Title :

    A new development in chromatic light signals


    Additional title:

    Ry. Signaling


    Contributors:

    Published in:

    Publication date :

    1926


    Size :

    3 pages


    Remarks:

    4 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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