John Burton Evans

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Columbus, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Golf swing training device and method
- Patent number 7,578,748
- Issue date Aug 25, 2009
- John Burton Evans
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Golf Swing Training Device and Method
- Publication number 20080200276
- Publication date Aug 21, 2008
- John Burton Evans
- A63 - SPORTS GAMES AMUSEMENTS