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Conformal bearing for rock drill bit
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Patent number 8,028,770
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Issue date Oct 4, 2011
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Baker Hughes Incorporated
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Aaron J. Dick
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Conformal bearing for rock drill bit
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Patent number 7,861,805
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Issue date Jan 4, 2011
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Baker Hughes Incorporated
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Aaron J. Dick
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Protector for rock bit seals
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Patent number 7,628,231
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Issue date Dec 8, 2009
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Baker Hughes Incorporated
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Chih C. Lin
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E21 - EARTH DRILLING MINING
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PCD face seal for earth-boring bit
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Patent number 7,311,159
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Issue date Dec 25, 2007
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Baker Hughes Incorporated
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Chih C. Lin
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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DLC coating for earth-boring bit seal ring
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Patent number 7,234,541
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Issue date Jun 26, 2007
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Baker Hughes Incorporated
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Danny E. Scott
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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PCD face seal for earth-boring bit
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Patent number 7,128,173
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Issue date Oct 31, 2006
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Baker Hughes Incorporated
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Chih C. Lin
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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