Today I Found Out
Lincoln's Patent (2018x125)
Data de estreia: Mai 12, 2018
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In this video:
The first paragraph of US patent 6469 reveals nothing that would give the reader any thought to the future greatness of the inventor. The patent is for an improvement to help boats pass over sandbars by adding “adjustable buoyant air chambers” to the bottom of the boat.
Want the text version?: http://www.todayifoundout.com/index.php/2016/05/lincoln-us-president-patent/
Sources:
http://www.abrahamlincolnonline.org/lincoln/education/patent.htm
http://www.smithsonianmag.com/ist/?next=/history/abraham-lincoln-only-president-have-patent-131184751
http://amhistory.si.edu/onthemove/collection/object_1348.html
https://books.google.com/books?id=77YnAQAAMAAJ&q=Lincoln+in+NeW+Orleans&dq=Lincoln+in+NeW+Orleans&hl=en&sa=X&ved=0ahUKEwiqj6PdtPrMAhUGcj4KHfmpC08Q6AEILzAB
http://www.pddoc.com/skedaddle/articles/abraham_lincolns_patent.htm
http://www.popularmechanics.com/technology/infrastructure/a19439/abraham-lincoln-patent
http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=00006469&IDKey=93535758E4F8%0D%0A&HomeUrl=http%3A%2F%2Fpatft.uspto.gov%2Fnetacgi%2Fnph-Parser%3FSect2%3DPTO1%2526Sect2%3DHITOFF%2526p%3D1%2526u%3D%2Fnetahtml%2FPTO%2Fsearch-bool.html%2526r%3D1%2526f%3DG%2526l%3D50%2526d%3DPALL%2526S1%3D0006469.PN.%2526OS%3DPN%2F6469%2526RS%3DPN%2F6469
http://www.lib.niu.edu/1995/ihy950233.html
http://www.fwdailynews.com/arc
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