Chaozong CHEN

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Polishing clamp and polishing method using the same
- Patent number 9,808,907
- Issue date Nov 7, 2017
- BOE Technology Group Co., Ltd.
- Keping Cao
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
POLISHING CLAMP AND POLISHING METHOD USING THE SAME
- Publication number 20160318150
- Publication date Nov 3, 2016
- BOE TECHNOLOGY GROUP CO., LTD.
- Keping CAO
- B24 - GRINDING POLISHING