Jang Yeon Seong

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for correcting a head-up phenomenon during a golf swing
- Patent number 8,753,217
- Issue date Jun 17, 2014
- Jang Yeon Seong
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS FOR CORRECTING A HEAD-UP PHENOMENON DURING A GOLF SWING
- Publication number 20130035171
- Publication date Feb 7, 2013
- Jang Yeon Seong
- A63 - SPORTS GAMES AMUSEMENTS