HONGCHENG ZHANG

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Xiamen, CN

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Patents Applicationslast 30 patents

Information Patent Application
Optical Solar Collector
- Publication number 20070159705
- Publication date Jul 12, 2007
- Hongcheng ZHANG
- G02 - OPTICS
Information Patent Application
OPTICAL SOLAR COLLECTOR
- Publication number 20070159704
- Publication date Jul 12, 2007
- HONGCHENG ZHANG
- F24 - HEATING RANGES VENTILATING