Hongya Li

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Differential pressure gauge
- Patent number 8,146,435
- Issue date Apr 3, 2012
- Sailsors Instruments Ltd., Beijing
- Yanfeng Li
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
DIFFERENTIAL PRESSURE GAUGE
- Publication number 20120090399
- Publication date Apr 19, 2012
- Sailsors Instruments Ltd., Beijing
- Yanfeng Li
- G01 - MEASURING TESTING