Zhengrong Wang

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Laborsaving and safety lighters
- Patent number 7,364,427
- Issue date Apr 29, 2008
- Ningbo Xinhai Electronics Manufacture Co., Ltd.
- Xinhua Huang
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Patents Applicationslast 30 patents

Information Patent Application
Laborsaving and safety cigarette lighter
- Publication number 20050170303
- Publication date Aug 4, 2005
- Xinhua Huang
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES