Lizhong Ji

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Residual current protection device
- Patent number 8,817,443
- Issue date Aug 26, 2014
- ABB S.p.A.
- Xinxia Gao
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Residual Current Protection Device
- Publication number 20130021711
- Publication date Jan 24, 2013
- ABB SpA
- Xinxia Gao
- H01 - BASIC ELECTRIC ELEMENTS