Beidou Zhang

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Autotransformer traction power supply system equipped with 2×27.5kV...
- Patent number 8,872,377
- Issue date Oct 28, 2014
- Zhaorong Industry Development (Shanghai) Co., Ltd.
- Jiahua Yu
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Autotransformer Traction Power Supply System Equipped With 2x27.5KV...
- Publication number 20120126622
- Publication date May 24, 2012
- Zhaorong Industry Development Co., Ltd.
- Jiahua Yu
- B60 - VEHICLES IN GENERAL