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Hailong Liu
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Baoding City, Hebei Province, CN
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Patents Grants
last 30 patents
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Patent Grant
Bi-directional contra-rotating circular rail bearing Y-shaped compo...
Patent number
10,323,622
Issue date
Jun 18, 2019
Hailong Liu
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Patents Applications
last 30 patents
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Patent Application
BI-DIRECTIONAL CONTRA-ROTATING CIRCULAR RAIL BEARING Y-SHAPED COMPO...
Publication number
20170022971
Publication date
Jan 26, 2017
Hailong Liu
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...