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Qingdao, Shandong, CN
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Patents Grants
last 30 patents
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Patent Grant
Securing system for freight wagon and freight wagon
Patent number
9,758,180
Issue date
Sep 12, 2017
CRRC QINGDAO SIFANG CO., LTD.
Zhaojin Sun
B60 - VEHICLES IN GENERAL
Patents Applications
last 30 patents
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Patent Application
SECURING SYSTEM FOR FREIGHT WAGON AND FREIGHT WAGON
Publication number
20170050649
Publication date
Feb 23, 2017
CRRC QINGDAO SIFANG CO., LTD.
Zhaojin SUN
B61 - RAILWAYS