Shengrong Gao

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Guangdong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Ball-shaped puzzle
- Patent number 8,042,812
- Issue date Oct 25, 2011
- Shengrong Gao
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
BALL-SHAPED PUZZLE
- Publication number 20100244377
- Publication date Sep 30, 2010
- Shengrong Gao
- A63 - SPORTS GAMES AMUSEMENTS