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Who filed US Patent number 6,469?

Question #151704. Asked by BigTriviaDawg.
Last updated Sep 03 2024.
Originally posted Sep 03 2024 8:00 PM.

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psnz star
Answer has 1 vote
psnz star
5 year member
1008 replies avatar

Answer has 1 vote.
The 16th President of the United States, Abraham Lincoln.

To date, he remains the only US President to hold a patent.

Lincoln worked for a period as a ferryman. His patented flotation device attached to the sides of a vessel to enable it to be lifted over shoals when aground.
On March 10, 1849, Abraham Lincoln filed a patent for a device for "buoying vessels over shoals" with the US Patent Office.
link https://www.gilderlehrman.org/history-resources/spotlight-primary-source/abraham-lincoln-inventor-1849
Response last updated by psnz on Sep 03 2024.
Sep 03 2024, 8:01 PM
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