Yunfa Cao

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 9,943,877
- Issue date Apr 17, 2018
- BOE Technology Group Co., Ltd.
- Yu Zhou
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
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- Publication number 20160129471
- Publication date May 12, 2016
- BOE TECHNOLOGY GROUP CO., LTD.
- Yu Zhou
- A46 - BRUSHWARE