Qianan Li

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Dongguan, CN

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Patents Applicationslast 30 patents

Information Patent Application
Elasticity-Adjustable Corrugated Cavity Fluid Pressure Spring Struc...
- Publication number 20160215844
- Publication date Jul 28, 2016
- GUANGDONG ZHENGMEI FURNITURE TECHNOLOGY CO.,LTD
- Qianan Li
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Elasticity-Adjustable Nonlinear Pressure Spring Unit
- Publication number 20150292586
- Publication date Oct 15, 2015
- GUANGDONG ZHENGMEI FURNITURE TECHNOLOGY CO.,LTD
- Xiangqian Li
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...