CHUANQI LI

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Meishan City, Sichuan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Single groove single-sided fastener and installation method thereof
- Patent number 11,692,576
- Issue date Jul 4, 2023
- MEISHAN CRRC FASTENING SYSTEM CO., LTD
- Shibo Wang
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Single groove single-sided fastener and installation method thereof
- Publication number 20230119925
- Publication date Apr 20, 2023
- MEISHAN CRRC FASTENING SYSTEM CO., LTD
- SHIBO WANG
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Pulling rivet for fastening connection of conductive material
- Publication number 20230121175
- Publication date Apr 20, 2023
- MEISHAN CRRC FASTENING SYSTEM CO., LTD
- XU HE
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...