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Hao Yunyu
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Xinxiang City, CN
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last 30 patents
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Patent Grant
Flooded type evaporating heat-exchange copper tube for an electrica...
Patent number
7,841,391
Issue date
Nov 30, 2010
Golden Dragon Precise Copper Tube Group, Inc.
Yunyu Hao
F28 - HEAT EXCHANGE IN GENERAL
Patents Applications
last 30 patents
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Patent Application
A FLOODED TYPE EVAPORATING HEAT-EXCHANGE COPPER TUBE FOR AN ELECTRI...
Publication number
20070151715
Publication date
Jul 5, 2007
Hao Yunyu
F28 - HEAT EXCHANGE IN GENERAL