4. Hydraulic and earth engineering
  5. Subterranean or submarine pipe or cable laying, retrieving,...

Robert B. Washburn

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Aerial duct with ribbed liner

Pipes and tubular conduits – Combined – With external support structure
Patent

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Collapsible duct

Pipes and tubular conduits – Flexible
Reexamination Certificate

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Collapsible duct

Implements or apparatus for applying pushing or pulling force – Method or apparatus for placement of conductive wire – Conduit snakes
Reexamination Certificate

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Corrosion resistant coated articles which include an intermediat

Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent

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Corrosion-resistant coated articles

Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent

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Profile ID: LFUS-PAI-P-987158

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