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Inflatable packer assembly
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Patent number 8,695,717
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Issue date Apr 15, 2014
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Schlumberger Technology Corporation
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William E. Brennan
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E21 - EARTH DRILLING MINING
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Inflatable packer assembly
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Patent number 7,578,342
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Issue date Aug 25, 2009
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Schlumberger Technology Corporation
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William E. Brennan, III
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E21 - EARTH DRILLING MINING
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Inflatable packer assembly
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Patent number 7,392,851
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Issue date Jul 1, 2008
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Schlumberger Technology Corporation
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William E. Brennan, III
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E21 - EARTH DRILLING MINING