Erjian SONG

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Suzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Switching device and a liquid level detection apparatus employing t...
- Patent number 11,953,365
- Issue date Apr 9, 2024
- Erjian Song
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
LEAKAGE CURRENT CONTROL DEVICE AND RELATED CONTROL APPARATUS AND EL...
- Publication number 20240088648
- Publication date Mar 14, 2024
- Aijun YANG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SWITCHING DEVICE AND A LIQUID LEVEL DETECTION APPARATUS EMPLOYING T...
- Publication number 20230132194
- Publication date Apr 27, 2023
- Erjian SONG
- G01 - MEASURING TESTING