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LAUNCHING OBJECTS INTO A WELLBORE
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Publication number 20200190934
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Publication date Jun 18, 2020
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Downing Wellhead Equipment, LLC
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Joel H. Young
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E21 - EARTH DRILLING MINING
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VALVE APPARATUS
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Publication number 20200123876
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Publication date Apr 23, 2020
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Downing Wellhead Equipment, LLC
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Nicholas J. Cannon
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E21 - EARTH DRILLING MINING
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VALVE APPARATUS
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Publication number 20170298708
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Publication date Oct 19, 2017
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The Colex Group, Inc.
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Nicholas J. Cannon
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CONTROLLED APERTURE BALL DROP
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Publication number 20150000893
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Publication date Jan 1, 2015
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OIL STATES ENERGY SERVICES, L.L.C.
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Joel H. Young
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E21 - EARTH DRILLING MINING
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APERTURE BALL DROP
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Publication number 20140096948
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Publication date Apr 10, 2014
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OIL STATES ENERGY SERVICES, L.L.C.
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Joel H. Young
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E21 - EARTH DRILLING MINING
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CONTROLLED APERTURE BALL DROP
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Publication number 20120279717
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Publication date Nov 8, 2012
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STINGER WELLHEAD PROTECTION, INC.
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Joel H. Young
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E21 - EARTH DRILLING MINING