4. Pipe joints or couplings
  5. With assembly means or feature
  6. Inserted section

Jean Lehmann

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Tight coupling device for two rigid, fixed pipes

Pipe joints or couplings – With assembly means or feature – Inserted section
Patent

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Treatment for improving the castability of aluminum killed...

Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1835906

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