4. Pipe joints or couplings
  5. With assembly means or feature

Ronald P. Hoffman

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Arrangement for sealing a closed production system

Seal for a joint or juncture – Seal between relatively movable parts – Close proximity seal
Reexamination Certificate

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Arrangement for sealing a closed production system

Metal working – Method of mechanical manufacture – Repairing
Patent

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Lateral entry remotely operated coupling system

Pipe joints or couplings – With assembly means or feature
Patent

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Profile ID: LFUS-PAI-P-1203545

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