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Patents Grantslast 30 patents

Information Patent Grant
Protection for heat transfer oil boiler
- Patent number 8,336,507
- Issue date Dec 25, 2012
- Guan-Ming Lao
- F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Protection for Heat Transfer Oil Boiler
- Publication number 20090056648
- Publication date Mar 5, 2009
- Guan-Ming LAO
- F28 - HEAT EXCHANGE IN GENERAL