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Insert safety valve system
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Patent number 10,508,512
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Issue date Dec 17, 2019
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Baker Hughes, a GE company, LLC
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Todd C. Jackson
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E21 - EARTH DRILLING MINING
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Seal
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Patent number RE45518
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Issue date May 19, 2015
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Freudenberg Oil & Gas UK Limited
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David Martin
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277 - Seal for a joint or juncture
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Seal
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Patent number 8,794,637
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Issue date Aug 5, 2014
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Freudenberg Oil & Gas UK Limited
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David Martin
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Seal
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Patent number 8,186,685
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Issue date May 29, 2012
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Caledyne Limited
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David Martin
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...