Black History Fact Of The Day

Written By: Elsie Law - Aug• 18•13

Boxer Jack Johnson is widely known for his boxing career. There have been books written and documentaries made about Jack Johnson’s boxing feats. However, Jack Johnson was also and inventor.

In April 1922, Jack Johnson received a patent for his invention, the “Johnson Wrench.” His invention fuctioned as a tightener for loosened fastening devices.

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