4. Pipe joints or couplings
  5. Liquid seal

Albert A. Koenig

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Ground water heat transfer systems and deployment thereof

Wells – With heating – refrigerating or heat insulating means – With eduction pump or plunger in well
Reexamination Certificate

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Tubular assembly for transferring fluids

Pipe joints or couplings – Liquid seal
Patent

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Profile ID: LFUS-PAI-P-836327

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