4. Pipe joints or couplings
  5. Serial,relatively movable portions
  6. Plural swivels

Jerry D. Smith

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Assembly for sealing the annulus between concentric...

Wells – Above ground apparatus – Inner member anchor or seal with lateral port
Reexamination Certificate

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Backside gettering method employing a monocrystalline germanium-

Fishing – trapping – and vermin destroying
Patent

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Hydraulic/torsion packoff installation tool

Wells – Processes – Placing or shifting well part
Patent

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Insulating support for tubing string

Wells – With electrical means
Patent

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Method of providing an internal circumferential shoulder in...

Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate

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Profile ID: LFUS-PAI-P-185641

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