Changzhen Liu

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Xiamen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Autonomous wall cleaner
- Patent number 10,357,140
- Issue date Jul 23, 2019
- Changzhen Liu
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

Information Patent Application
AUTONOMOUS WALL CLEANER
- Publication number 20180168415
- Publication date Jun 21, 2018
- Xiamen Huaway IOT Technology Co., Ltd.
- Changzhen Liu
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...