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Sagdox geometry
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Patent number 9,828,841
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Issue date Nov 28, 2017
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NEXEN ENERGY ULC
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Richard Kelso Kerr
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E21 - EARTH DRILLING MINING
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Oil reclamation process
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Patent number 4,330,038
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Issue date May 18, 1982
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Zimpro-AEC Ltd.
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Charles L. Soukup
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E21 - EARTH DRILLING MINING
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Treatment of clay slimes
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Patent number 4,312,761
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Issue date Jan 26, 1982
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Zimpro-AEC Ltd.
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Wayne B. Gitchel
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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