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Dexiang Hu
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Liaoning, CN
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Patents Grants
last 30 patents
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Patent Grant
Scissors type vertical elevated substructure
Patent number
7,497,052
Issue date
Mar 3, 2009
Equipment Engineering Company of Liaohe Petroleum Exploration Bureau, CNPC
Dexiang Hu
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Gate type vertical elevated mast
Patent number
7,337,738
Issue date
Mar 4, 2008
Equipment Engineering Company of Liaohe Petroleum Exploration Bureau, CNPC
Dexiang Hu
E04 - BUILDING
Patents Applications
last 30 patents
Information
Patent Application
Scissors type vertical elevated substructure
Publication number
20070240909
Publication date
Oct 18, 2007
Equipment Engineering Company of Liaohe
Dexiang Hu
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Gate type vertical elevated mast
Publication number
20070240622
Publication date
Oct 18, 2007
Equipment Engineering Company of Liaohe
Dexiang Hu
E04 - BUILDING