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Powder metal valve seat insert
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Patent number 6,676,724
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Issue date Jan 13, 2004
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Eaton Corporation
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Sundaram L. Narasimhan
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Powder metal valve guide
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Patent number 6,599,345
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Issue date Jul 29, 2003
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Eaton Corporation
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Yushu Wang
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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-
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Light weight hollow valve assembly
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Patent number 5,960,760
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Issue date Oct 5, 1999
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Eaton Corporation
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Yushu Wang
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Engine valve assembly
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Patent number 5,934,238
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Issue date Aug 10, 1999
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Eaton Corporation
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Yushu Wang
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES