NLM Digital Collections


Search Constraints

Start Over You searched for: Subjects Patents as Topic Remove constraint Subjects: Patents as Topic
Number of results to display per page

Search Results

4. 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


6. Anaesthetic agents: the respectful notice, protest and memorial of W.T.G. Morton, M.D., discoverer and patentee of etherization : addressed to His Excellency the President, the honorable Secretaries of the Treasury, War, Navy, and Interior, touching the use of his discovery in the public service in violation of his vested rights under the letters patent of the United States