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Casing valve
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Patent number 4,991,654
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Issue date Feb 12, 1991
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Halliburton Company
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John T. Brandell
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E21 - EARTH DRILLING MINING
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Inflatable grout seal
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Patent number 4,337,010
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Issue date Jun 29, 1982
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Halliburton Company
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Bob L. Sullaway
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Grout distribution system
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Patent number 4,320,992
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Issue date Mar 23, 1982
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Halliburton Company
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Morris G. Baldridge
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Inflation and grout system
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Patent number 4,275,974
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Issue date Jun 30, 1981
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Halliburton Company
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Lloyd C. Knox
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Leg closure
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Patent number 4,230,424
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Issue date Oct 28, 1980
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Halliburton Company
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Bob L. Sullaway
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Leg closure
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Patent number 4,220,422
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Issue date Sep 2, 1980
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Halliburton Company
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Bob L. Sullaway
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Breech block connector
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Patent number 4,165,891
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Issue date Aug 28, 1979
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Halliburton Company
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Bob L. Sullaway
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E21 - EARTH DRILLING MINING
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EZ disposal packer
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Patent number 4,151,875
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Issue date May 1, 1979
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Halliburton Company
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Bob L. Sullaway
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E21 - EARTH DRILLING MINING