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Start Over You searched for: Subjects Patents as Topic Remove constraint Subjects: Patents as Topic Publication Year 1850 to 1859 Remove constraint Publication Year: <span class="from" data-blrl-begin="1850">1850</span> to <span class="to" data-blrl-end="1859">1859</span>

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1. American dental patents: a vindication of the truth of certain articles in the American journal of dental science, entitled a "Sketch of American dental patents", and a refutation of the charges made against them, by the Dental register : a notice of the action of the Mississippi Valley Association and Ohio College of Dental Surgery, on the subject of patenting professional improvements

2. 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