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

Delbert E. Vanderford, Jr.

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Connector for securing conduits

Pipe joints or couplings – Essential catch – Resilient ring
Reexamination Certificate

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Connector for securing conduits

Pipe joints or couplings – Essential catch – Resilient ring
Reexamination Certificate

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Packoff and seal ring assembly with injected plastic packing

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent

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Wellhead hanger

Wells – Expansible anchor or casing – Liner hanger
Patent

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Wellhead slip and seal assembly

Pipe joints or couplings – Serial,relatively movable portions – Plural swivels
Patent

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Profile ID: LFUS-PAI-P-185640

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