Changzhi Li

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Connecting mechanism for a battery case and a body of a portable el...
- Patent number 7,180,754
- Issue date Feb 20, 2007
- Shenzhen Futaihong Precision Ind. Co., Ltd.
- Shui Yuan Qin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Connecting mechanism for a battery case and a body of a portable el...
- Publication number 20040224556
- Publication date Nov 11, 2004
- Shui Yuan Qin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE