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Hydraulic release system
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Patent number 5,174,375
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Issue date Dec 29, 1992
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Union Oil Company of California
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Michael G. Mims
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E21 - EARTH DRILLING MINING
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Hydraulic release oil tool
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Patent number 5,170,847
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Issue date Dec 15, 1992
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Union Oil Company of California
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Michael G. Mims
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E21 - EARTH DRILLING MINING
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Oil tool release joint
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Patent number 5,086,843
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Issue date Feb 11, 1992
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Union Oil Company of California
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Michael G. Mims
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E21 - EARTH DRILLING MINING
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Hydraulic release oil tool
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Patent number 5,086,844
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Issue date Feb 11, 1992
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Union Oil Company of California
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Michael G. Mims
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E21 - EARTH DRILLING MINING
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