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Work machine
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Patent number 10,745,887
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Issue date Aug 18, 2020
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Hitachi Construction Machinery Co., Ltd.
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Yuki Akiyama
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Vacuum system pipe couplings
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Patent number 10,203,054
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Issue date Feb 12, 2019
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Edwards Limited
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Andrew James Seeley
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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Erosion resistant flow conduit
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Patent number 9,695,661
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Issue date Jul 4, 2017
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Specialized Desanders Inc.
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Christopher A. Hemstock
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E21 - EARTH DRILLING MINING
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Tubular joint
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Patent number 9,488,302
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Issue date Nov 8, 2016
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Vetco Gray Scandinavia AS
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Ole Gjerstad
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E21 - EARTH DRILLING MINING
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Erosion resistant flow conduit
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Patent number 9,182,066
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Issue date Nov 10, 2015
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Specialized Desanders Inc.
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Christopher A Hemstock
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Device for detecting leaks in a flanged joint
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Patent number 5,231,867
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Issue date Aug 3, 1993
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Dipl.-Ing. Wrede & Niedecken Verwaltung GmbH
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Gunter Serwatzky
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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