Rope-and-pulley device unwinds at rate fairly independent of weight attached to it. Device is easily installed and fabrication is economical. It is particularly suitable as emergency escape device.


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    Title :

    Improved road handler


    Contributors:

    Published in:

    Publication date :

    1977-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


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