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1 Development and Use of Patent Classification Systems i (1966)

handle is hein.intprop/dvuspatcls0001 and id is 1 raw text is: 



  DEVELOPMENT


    AND USE OF


        PATENT


CLASSIFICATION


       SYSTEMS,



























   U.S. DEPARTMENT OF COMMERCE
        John T. Connor, Secretary

           PATENT OFFICE
       Edward J. Brenner, Commissioner

            JANUARY 1966


For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C., 20402 - Price $1.50

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