1860
U.S. Patent Office, 1920
U.S. Patent Office, 1860
U.S. Patent Office, 1870
George Washington, 22 Feb 1732 - 14 Dec 1799, 1790
George Washington, 22 Feb 1732 - 14 Dec 1799, 1830
George Washington, 22 Feb 1732 - 14 Dec 1799, 1840
George Washington, 22 Feb 1732 - 14 Dec 1799, 1770
U.S. Patent Office, 1880
George Washington, 22 Feb 1732 - 14 Dec 1799, 1810
U.S. Patent Office, 1910