4. Hydraulic and earth engineering
  5. Subterranean or submarine pipe or cable laying, retrieving,...
  6. Submerging, raising, or manipulating line of pipe or cable...

Piet Kalkman

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Method and installation for laying a pipeline on a surface locat

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Submerging – raising – or manipulating line of pipe or cable...
Patent

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Tensioner

Advancing material of indeterminate length – By orbitally traveling material-engaging surface – On endless belt or chain
Reexamination Certificate

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Transport vehicle for large, heavy loads

Motor vehicles – Vehicle trains
Patent

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Profile ID: LFUS-PAI-P-421825

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