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DRILLABLE BRIDGE PLUG
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Publication number 20100326650
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Publication date Dec 30, 2010
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Smith International, Inc.
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Lap T. Tran
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E21 - EARTH DRILLING MINING
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BALL SEAT SUB
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Publication number 20100084146
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Publication date Apr 8, 2010
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Smith International, Inc.
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William M. Roberts
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E21 - EARTH DRILLING MINING
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DRILLABLE BRIDGE PLUG
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Publication number 20080308266
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Publication date Dec 18, 2008
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Smith International, Inc.
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William M. Roberts
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E21 - EARTH DRILLING MINING
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PERMANENT ANCHORING DEVICE
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Publication number 20080264627
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Publication date Oct 30, 2008
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Smith International, Inc.
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William M. Roberts
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E21 - EARTH DRILLING MINING
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DRILLABLE BRIDGE PLUG
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Publication number 20080190600
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Publication date Aug 14, 2008
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Smith International, Inc.
-
Piro Shkurti
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E21 - EARTH DRILLING MINING
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Mill and pump-off sub
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Publication number 20070023188
-
Publication date Feb 1, 2007
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Smith International, Inc.
-
William M. Roberts
-
E21 - EARTH DRILLING MINING
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Drillable bridge plug
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Publication number 20050189103
-
Publication date Sep 1, 2005
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Smith International, Inc.
-
William M. Roberts
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E21 - EARTH DRILLING MINING
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