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ROTOR BEARING SYSTEM
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Publication number 20240026738
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Publication date Jan 25, 2024
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National-Oilwell Varco, L.P.
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Michael J. Guidry
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E21 - EARTH DRILLING MINING
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SEALING SYSTEM FOR DOWNHOLE TOOL
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Publication number 20230279726
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Publication date Sep 7, 2023
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The Charles Machine Works, Inc.
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Greg L. Slaughter
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E21 - EARTH DRILLING MINING
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THRUST BEARING
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Publication number 20230220731
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Publication date Jul 13, 2023
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Rotojar Innovations Limited
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Peter Barnes MOYES
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E21 - EARTH DRILLING MINING
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SEAL SYSTEM
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Publication number 20230130532
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Publication date Apr 27, 2023
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Dynomax Drilling Tools Inc.
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Hartley Randle
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E21 - EARTH DRILLING MINING
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REAMING TOOL
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Publication number 20230098010
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Publication date Mar 30, 2023
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CHIMEREBERE ONYEKWERE NKWOCHA
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E21 - EARTH DRILLING MINING
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LIQUID HAMMER DRILL
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Publication number 20220372820
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Publication date Nov 24, 2022
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Warren Ross STRANGE
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E21 - EARTH DRILLING MINING
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FULL SLEEVE CONCENTRIC LUBRICATOR
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Publication number 20220290499
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Publication date Sep 15, 2022
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TIER 1 ENERGY TECH, INC.
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Mathys Lourens Geldenhuys
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E21 - EARTH DRILLING MINING
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