Patent USX9430: Revolving Gun. Veröffentlicht am 25. Februar 1836, Erfinder: Samuel Colt.
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Gregg Lee Carter: Guns in American Society. An Encyclopedia of History, Politics, Culture, and the Law. S. 126 (Google Books)
Eighty years’ progress of the United States, from the Revolutionary war to the great rebellion. New National Publishing House, New York 1864 (Google Books)
