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Toe valve
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Patent number 10,465,478
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Issue date Nov 5, 2019
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Tercel Oilfield Products USA LLC
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Kenneth J. Anton
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E21 - EARTH DRILLING MINING
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Stop collar
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Patent number 10,385,637
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Issue date Aug 20, 2019
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Tercel Oilfield Products USA LLC
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Graeme Thomas Marr
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E21 - EARTH DRILLING MINING
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Toe valve
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Patent number 10,107,072
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Issue date Oct 23, 2018
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Tercel Oilfield Products USA LLC
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Michael Harris
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E21 - EARTH DRILLING MINING
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Frac plug
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Patent number 10,000,991
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Issue date Jun 19, 2018
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Tercel Oilfield Products USA LLC
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Michael J. Harris
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E21 - EARTH DRILLING MINING