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1992 Index to the U.S. Patent Classification i (1992)

handle is hein.intprop/inuspacl1992 and id is 1 raw text is: 







               INDEX TO THE

          U.S. PATENT

CLASSIFICATION

                    SYSTEM



                    DECEMBER 1992










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                  U.S. DEPARTMENT OF COMMERCE
                      Barbara H. Franklin, Secretary


                      U.S. Patent and Trademark Office
                             Harry F. Manbeck, Jr.
                             Assistant Secretary and
                   Commissioner of Patents and Trademarks


Office of Classification Support

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