4. Pipes and tubular conduits
  5. Repairing

Naoki Kitahashi

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Apparatus for lining an inner face of tubular culverts...

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Work-secured and/or work-guided
Reexamination Certificate

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Method and device for lining construction in sewer followed...

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Repair – replacement – or improvement
Reexamination Certificate

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Method of and an apparatus for lining a pipeline

Pipes and tubular conduits – Repairing
Patent

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Method of drilling a branch line aperture after internal lining

Boring or penetrating the earth – With signaling – indicating – testing or measuring
Patent

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Profile ID: LFUS-PAI-P-453293

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