Rong Yang

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Hangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Sanitary and compact fecal occult blood collector
- Patent number 7,264,776
- Issue date Sep 4, 2007
- Huiyan Guo
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Sanitary and compact fecal occult blood collector
- Publication number 20050009200
- Publication date Jan 13, 2005
- Huiyan Guo
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE