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WELL DRILLING SYSTEM
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Publication number 20180171722
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Publication date Jun 21, 2018
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JEFF STILL
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E21 - EARTH DRILLING MINING
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SUBSEA CASING DRILLING SYSTEM
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Publication number 20170198526
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Publication date Jul 13, 2017
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Weatherford Technology Holdings, LLC.
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Eric M. TWARDOWSKI
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E21 - EARTH DRILLING MINING
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SUBSEA CASING DRILLING SYSTEM
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Publication number 20170051561
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Publication date Feb 23, 2017
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Weatherford Technology Holdings, LLC.
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Eric M. TWARDOWSKI
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E21 - EARTH DRILLING MINING
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SUBSEA DRILLING WITH CASING
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Publication number 20150184461
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Publication date Jul 2, 2015
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WEATHERFORD/LAMB, INC.
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Eric M. TWARDOWSKI
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E21 - EARTH DRILLING MINING
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SUBSEA CASING DRILLING SYSTEM
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Publication number 20130233547
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Publication date Sep 12, 2013
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WEATHERFORD/LAMB, INC.
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Eric M. TWARDOWSKI
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E21 - EARTH DRILLING MINING
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LATCH ASSEMBLY
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Publication number 20130233534
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Publication date Sep 12, 2013
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Jose A. TREVINO
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E21 - EARTH DRILLING MINING
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REAMING TOOL
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Publication number 20110168447
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Publication date Jul 14, 2011
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Edward D. Scott
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E21 - EARTH DRILLING MINING
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