4. Pipe joints or couplings
  5. Repair
  6. Removable wear element

Donald R. Kunsman

Inventor

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Abrasive grip pipe coupling

Pipe joints or couplings – With fluid pressure seal – With separate – encased pipe-gripping means
Patent

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Coupling members for pipeline assemblies

Pipe joints or couplings – Repair – Removable wear element
Patent

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Machine for roll grooving of pipe

Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Patent

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Pipe branch fitting

Pipe joints or couplings – End to side or plate – Saddle-type clamp
Reexamination Certificate

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Pipe coupling

Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent

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Profile ID: LFUS-PAI-P-206349

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