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Yihai Yan
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Shanghai, CN
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last 30 patents
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Patent Grant
Control valve with a two-piece shifting mechanism
Patent number
8,286,664
Issue date
Oct 16, 2012
Norgren, Inc.
Yihai Yan
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
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Patent Application
CONTROL VALVE WITH A TWO-PIECE SHIFTING MECHANISM
Publication number
20100116344
Publication date
May 13, 2010
Norgren,Inc.
Yihai Yan
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...