4. Pipe joints or couplings
  5. With casing, lining or protector
  6. Insulated

Jeffrey L. Weigl

Inventor

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Anti-twist coupling assembly

Pipe joints or couplings – Particular interface
Patent

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Anti-twist coupling assembly with biasing means

Pipe joints or couplings – Particular interface
Patent

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Dielectric coupling

Pipe joints or couplings – With casing – lining or protector – Insulated
Patent

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Fluid coupling

Pipe joints or couplings – Packed – Screw thimble
Patent

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Fluid coupling

Pipe joints or couplings – Packed – Gasket retainer
Patent

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Profile ID: LFUS-PAI-P-318369

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