Chun Zhang

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Zhengzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Dental drill head
- Patent number 10,064,698
- Issue date Sep 4, 2018
- ZHENGZHOU ZEZHENG TECHNICAL SERVICES LTD.
- Chun Zhang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
DENTAL DRILL HEAD
- Publication number 20140038123
- Publication date Feb 6, 2014
- ZHENGZHOU ZEZHENG TECHNICAL SERVICES LTD.
- Chun Zhang
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE