Rongzhen Li

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Bit accessory and bit assembly
- Patent number 10,093,005
- Issue date Oct 9, 2018
- Chervon (HK) Limited
- Xiaofeng Zhang
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Information Patent Application
SCREWDRIVER
- Publication number 20180043516
- Publication date Feb 15, 2018
- CHERVON (HK) LIMITED
- Xiaofeng Zhang
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
BIT HOLDER AND COMBINATION OF TOOL BIT AND BIT HOLDER
- Publication number 20160271768
- Publication date Sep 22, 2016
- CHERVON (HK) LIMITED
- Xiaofeng Zhang
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
BIT ACCESSORY AND BIT ASSEMBLY
- Publication number 20160016298
- Publication date Jan 21, 2016
- CHERVON INTELLECTUAL PROPERTY LIMITED
- Xiaofeng Zhang
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS