3 Utility Patents
#846 in Wuhan
#44,407 in China
Forward Citations = 0
Company Filing History:

China Railway Eleventh Bureau Group Co., Ltd
China Railway Eleventh Bureau Group Fourth Engineering Co., Ltd.
4. 2 out of 2
Wujiu Railway Passenger Dedicated Line Hubei Co., Ltd
5. 2 out of 2
China Railway Southwest Scientific Research Institute Co., Ltd
where one patent can have more than one assignee
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