4. Pipes and tubular conduits
  5. With closures and plugs
  6. Inflation stem type

Ludvig Naess

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Centering apparatus for laying of tubes

Metal working – Means to assemble or disassemble – Means comprising hand manipulatable tool
Patent

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Device with a valve function

Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent

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Pipeline vehicle

Measuring and testing – With fluid pressure – Leakage
Patent

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Shut-off device which can be inserted into a pipeline

Pipes and tubular conduits – With closures and plugs – Inflatable
Patent

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Profile ID: LFUS-PAI-P-197489

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