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Toggle mechanism connector
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Patent number 4,335,904
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Issue date Jun 22, 1982
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NL Industries, Inc.
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Kenneth C. Saliger
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E21 - EARTH DRILLING MINING
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Hydrocarbon production terminal
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Patent number 4,299,260
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Issue date Nov 10, 1981
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Amtel, Inc.
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Martin B. Jansen
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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VMP Casing tieback
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Patent number 4,293,146
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Issue date Oct 6, 1981
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Standard Oil Company (Indiana)
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Pierre A. Beynet
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E21 - EARTH DRILLING MINING
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Well casing hanger assembly
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Patent number 4,276,932
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Issue date Jul 7, 1981
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NL Industries, Inc.
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Kenneth C. Saliger
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E21 - EARTH DRILLING MINING
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Toggle mechanism connector
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Patent number 4,222,592
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Issue date Sep 16, 1980
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NL Industries, Inc.
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Kenneth C. Saliger
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E21 - EARTH DRILLING MINING
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