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Black Fact of the Day: July 21, 2019 – Brought to you by Black365
On this day, July 21, 1889, inventor W.A. Martin patented the lock that was the forerunner to the modern door lock.
Brought to you by the Black365 Calendar. Find out more at www.Black365.US.
Categories: Black Fact of the Day | History | Legends
Tags: Black Fact of the Day | Black History | Black Inventor | Black365 | innovation | W.A. Martin
Tags: Black Fact of the Day | Black History | Black Inventor | Black365 | innovation | W.A. Martin
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