Chunping Guo

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Shanxi, CN

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Patents Grantslast 30 patents

Information Patent Grant
Dual-prevention lock device for locking a screw and a method for lo...
- Patent number 10,072,697
- Issue date Sep 11, 2018
- Chunping Guo
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
DUAL-PREVENTION LOCK DEVICE FOR LOCKING A SCREW AND A METHOD FOR LO...
- Publication number 20150023758
- Publication date Jan 22, 2015
- Chunping Guo
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...