Yueyang Chen

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Removable tongue position corrective anti-snoring and anti-suffocat...
- Patent number 7,770,582
- Issue date Aug 10, 2010
- Shanghai Guang Ren Anti-Snoring Health Center
- Haidong Chen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE