4. Hydraulic and earth engineering
  5. Subterranean or submarine pipe or cable laying, retrieving,...
  6. Cast in situ

Roger W. Gallagher

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Crane type lifting assembly for heavy loads

Implements or apparatus for applying pushing or pulling force – Multiple lifters
Patent

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Safety stanchion for fall protection system

Fire escape – ladder – or scaffold – Torso harness
Patent

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Self-propelled continuous concrete pipe-laying machine

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – Cast in situ
Patent

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Profile ID: LFUS-PAI-P-655467

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