Library: Search Results

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SOURCE: United States Patent and Trademark Office

Results: 1 - 10 of 26 total   Next

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Date Format Image Collection
September 24, 1844 Patent    Document
March 23, 1869 Patent    Document
February 16, 1869 Patent    Document
October 22, 1861 Government Document    Document
August 25, 1863 Patent    Document
December 18, 1866 Patent    Document
November 10, 1863 Patent    Document
May 10, 1853 Patent    Document
June 19, 1894 Patent    Document
December 25, 1894 Patent    Document
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