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May 29 Patent of the Day

Posted on May 29, 2016 by bwheelock

On May 29, 1888, U.S. Patent No. 383,746, issued to Elijah McCoy on a Lubricator (the “Real McCoy”).

29-May

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About bwheelock

Education J.D., Washington University in St. Louis B.S.E. in Mechanical Engineering, Duke University
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