Xiangcai Zeng

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Storeage gas water heater
- Patent number 9,568,213
- Issue date Feb 14, 2017
- A. O. Smith Corporation
- Bu Qiu
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
STOREAGE GAS WATER HEATER
- Publication number 20120090562
- Publication date Apr 19, 2012
- Bu Qiu
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES