Qijie XUAN

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Shaoxing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Guide frame for four-way reversing valve
- Patent number 12,104,708
- Issue date Oct 1, 2024
- ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
- Fei Zhang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
GUIDE FRAME FOR FOUR-WAY REVERSING VALVE
- Publication number 20230228334
- Publication date Jul 20, 2023
- ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
- Fei ZHANG
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...