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United States. Patent Office
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Annual report of the Commissioner of Patents / U.S. Department of Commerce, Patent Office.
United States. Patent Office.
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Before the Commissioner of Patents, in the matter of extension of letters patent of the United States, granted to William T.G. Morton, on the 12th day of November, 1946, for "An improvement in surgical operations" : statement and account, pursuant to section eighteen of the Act of Congress, passed July 4, 1836.
Morton, W. T. G. (William Thomas Green), 1819-1868.Date: 1860- Books
C.T. Jackson and Wm. T.G. Morton, of Boston, Massachusetts; said C.T. Jackson assignor to Wm. T.G. Morton. : Improvement in surgical operations. Specification forming part of Letters Patent no. 4,848, dated November 12, 1846.
United States. Patent Office.Date: [1846]