5 Utility Patents
#3 in Qiqihar
#26,520 in China
#822,488 in the World
Forward Citations = 6
Company Filing History:
Qiqihar Railway Rolling Stock Co., Ltd.
Crrc Qiqihar Rolling Stock Co., Ltd.
Mudanjiang Jinyuan Coupler and Draft Gear Manufacturing Co., Ltd.
where one patent can have more than one assignee
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