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Deployable centralizers
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Patent number 10,344,542
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Issue date Jul 9, 2019
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National Technology & Engineering Solutions of Sandia, LLC
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Mark C. Grubelich
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E21 - EARTH DRILLING MINING
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Self-consuming materials
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Patent number 9,656,926
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Issue date May 23, 2017
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Sandia Corporation
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Steven G. Thoma
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E21 - EARTH DRILLING MINING
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Deployable centralizers
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Patent number 9,580,976
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Issue date Feb 28, 2017
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Sandia Corporation
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Mark C. Grubelich
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E21 - EARTH DRILLING MINING