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March 12, 2013

Abe Lincoln’s patent for a river navigation device

by Larra Morris

croppedlincoln.png

On March 10, 1849, eight score and four years ago yesterday, a future president brought forth on this continent a new notion for improving river navigation.

That was the day Abraham Lincoln filed a patent application for his imaginative method of “Buoying Vessels Over Shoals.”
via CNET

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