Cailu CHEN

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Ninghai Ningbo, Zhejiang, CN

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Patents Grantslast 30 patents

Information Patent Grant
Power adjustment device
- Patent number 11,400,333
- Issue date Aug 2, 2022
- Cailu Chen
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Information Patent Application
POWER ADJUSTMENT DEVICE
- Publication number 20210113876
- Publication date Apr 22, 2021
- NINGHAI CAILU ELECTRICAL CO., LTD
- Cailu CHEN
- G10 - MUSICAL INSTRUMENTS ACOUSTICS