United States. President (1809-1817 : Madison)
The United States of America : to all to whom these letters patent shall come : whereas Erastus Denison, a citizen of the United States, hath alleged that he has invented a new and useful improvement in the washing machine --
At head of title: Copy.
Dated: Washington, 30 December, 1812.
Penrose R. Hoopes Collection, no. 335 (c.1)
Patents -- United States.
Madison, James, 1751-1836.