4. Pipe joints or couplings
  5. With leakage or drip disposal
  6. Weep holes

Roger Raether

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Removal of obsolete drill platforms from inland seas and...

Hydraulic and earth engineering – Foundation – Columnar structure
Reexamination Certificate

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Rotary coupling

Pipe joints or couplings – With leakage or drip disposal – Weep holes
Patent

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Profile ID: LFUS-PAI-P-1488398

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