Yefa Li

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Target material thickness measuring apparatus
- Patent number 9,778,024
- Issue date Oct 3, 2017
- BOE Technology Group Co., Ltd.
- Deyong Wang
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Target Material Thickness Measuring Apparatus
- Publication number 20160349037
- Publication date Dec 1, 2016
- BOE TECHNOLOGY GROUP CO., LTD.
- Deyong Wang
- G01 - MEASURING TESTING