Yanhui Shi

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Swing spray device of cleaning apparatus and cleaning method
- Patent number 9,744,565
- Issue date Aug 29, 2017
- Beijing Sevenstar Electronics Co., Ltd.
- Yanhui Shi
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
SWING SPRAY DEVICE OF CLEANING APPARATUS AND CLEANING METHOD
- Publication number 20150209834
- Publication date Jul 30, 2015
- Yanhui Shi
- B08 - CLEANING