Xiangnian Chen

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Yingcheng, CN

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Patents Grantslast 30 patents

Information Patent Grant
Retractable rod and tent
- Patent number 7,644,720
- Issue date Jan 12, 2010
- Xiangnian Chen
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
Retractable Rod and Tent
- Publication number 20080271770
- Publication date Nov 6, 2008
- Xiangnian Chen
- E04 - BUILDING