Subjects: Patents as Topic / Titles: 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 - Digital Collections - National Library of Medicine Search Results

Start Over Subjects Patents as Topic ✖ Titles 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 ✖