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Telemetry Pipe System
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Publication number 20210087889
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Publication date Mar 25, 2021
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The Charles Machine Works, Inc.
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Floyd R. Gunsaulis
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E21 - EARTH DRILLING MINING
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Vibratory Trench Scoop
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Publication number 20160108605
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Publication date Apr 21, 2016
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The Charles Machine Works, Inc.
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Floyd R. Gunsaulis
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Reamer With Replaceable Cutters
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Publication number 20140305708
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Publication date Oct 16, 2014
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The Charles Machine Works, Inc.
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Floyd R. Gunsaulis
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E21 - EARTH DRILLING MINING
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Configurable Beacon And Method
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Publication number 20080121430
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Publication date May 29, 2008
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The Charles Machine Works, Inc.
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Scott B. Cole
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E21 - EARTH DRILLING MINING
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Directional Reaming System
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Publication number 20070187148
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Publication date Aug 16, 2007
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The Charles Machine Works, Inc.
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Kelvin P. Self
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E21 - EARTH DRILLING MINING
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Directional reaming system
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Publication number 20040188142
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Publication date Sep 30, 2004
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Kelvin P. Self
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E21 - EARTH DRILLING MINING