Liangliang XU

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Tianjin, CN

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Patents Applicationslast 30 patents

Information Patent Application
UNDERWATER DEBRIS SUCTION APPARATUS
- Publication number 20220195745
- Publication date Jun 23, 2022
- TIANJIN WANGYUAN ENVIRONMENTAL PROTECTION & TECHNOLOGY CO., LTD
- Qian YU
- E04 - BUILDING
Information Patent Application
MECHANISM FOR DETECTING OBSTACLES AND MECHANICALLY REVERSING (A DIR...
- Publication number 20210238876
- Publication date Aug 5, 2021
- TIANJIN WANGYUAN ENVIRONMENTAL PROTECTION & TECHNOLOGY CO., LTD
- Qian YU
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL