28 Jan 1894

Jack Hammer pneumatic hammer is patented

Topics: Jackhammer

Charles Brady King of Detroit patents the pneumatic hammer which he invented in 1890.

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Source: About.com

http://inventors.about.com/library/inventors/bl...

Charles King

Attribution: http://clubs.hemmings.com/clubsites/kingmotorcar/king.html

License: Unknown

Source: http://clubs.hemmings.com/clubsites/kingmotorcar/king.html

Detroit, MI

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