Changxi Dai

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Through-hole type power ratchet wrench
- Patent number 9,321,154
- Issue date Apr 26, 2016
- Chervon (HK) Limited
- Liang Chen
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Information Patent Application
THROUGH-HOLE TYPE POWER RATCHET WRENCH
- Publication number 20140260835
- Publication date Sep 18, 2014
- CHERVON (HK) LIMITED
- Liang Chen
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
HAND-HELD ELECTRIC TOOL
- Publication number 20110155404
- Publication date Jun 30, 2011
- CHERVON LIMITED
- Changxi Dai
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
POWER TOOL
- Publication number 20100308547
- Publication date Dec 9, 2010
- CHERVON LIMITED
- Masatoshi Fukinuki
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR