Rotary drills driven by hydraulic power to be used in the Simplon tunnel. The design of these drills illustrated. (See also Lon. Engineer, January 25, 1895 Sci. Am. Sup., March 9, 1895)


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    Title :

    Brandt's rock drills


    Additional title:

    RR Gaz


    Published in:

    Publication date :

    1895


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :



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