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Groove-mounted seals with integral antiextrusion device
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Advanced cruise control
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Remotely pretensioned threaded tubular connections
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Method and apparatus for pretensioning remotely installed clamps and flanges
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Dual snap action for valves
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Mudsaver valve with dual snap action
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Methods for manipulating data in multiple dimensions.
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Seal assembly, its use and installation
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Method and apparatus for gripping objects
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Method and apparatus for operating multiple tools in a well
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Well apparatus
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Well apparatus
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Accumulator recharging valve
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