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 --

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 --

[Washington, 1812]

At head of title: Copy.

Dated: Washington, 30 December, 1812.

Penrose R. Hoopes Collection, no. 335 (c.1)

Patents -- United States.

Washing-machines.

Denison, Erastus.

Madison, James, 1751-1836.

Philadelphia Area Center for History of Science
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