Junsong Wang

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Heilongjiang Province, CN

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Patents Grantslast 30 patents

Information Patent Grant
Coupler draft gear, double-side operating coupler and lower lockpin...
- Patent number 8,469,211
- Issue date Jun 25, 2013
- Qiqihar Railway Rolling Stock Co., Ltd.
- Qingmin Meng
- B61 - RAILWAYS
Information Patent Grant
Draft gear
- Patent number 8,302,791
- Issue date Nov 6, 2012
- Oiqihar Railway Rolling Stock Co., Ltd.
- Yan Jiang
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
DRAFT GEAR
- Publication number 20110266243
- Publication date Nov 3, 2011
- QIQIHAR RAILWAY ROLLING STOCK CO., LTD
- Yan Jiang
- B61 - RAILWAYS
Information Patent Application
Coupler Draft Gear, Double-Side Operating Coupler and Lower Lockpin...
- Publication number 20110049078
- Publication date Mar 3, 2011
- Qiqihar Railway Rolling Stock Co., Ltd
- Qingmin Meng
- B61 - RAILWAYS