LandOfFree - US Patents - Listing for Hydraulic and earth engineering,Subterranean or submarine pipe or cable laying, retrieving,...

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Earth discharge control system for small-diameter pipe propellin

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

Patent

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Earth duct tunnel enlargement apparatus and method

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

Patent

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Efficiency of laying pipe

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – With protection or indication of pipe or trench

Patent

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Efficient method and pulverizer for pipeline trench padding

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...

Reexamination Certificate

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Elastomeric grouting of subsurface conduits

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

Patent

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Electronic dog fence installer

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...

Patent

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Embedding cablelike members

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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Equipment for removing and refitting resilient packing in a card

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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Eversion nozzle, and a method for repairing an underground tubul

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

Patent

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Excavating and pipe laying machines

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...

Patent

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Excavating and pipeline installation system

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...

Patent

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Excavating and pipeline installation system

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Excavating and pipeline installation system

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – By means advancing along terrain and guiding pipe or cable...

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Excavating and propelling machine for laying pipelines undergrou

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

Patent

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Excavation method and apparatus for accessing underground pipes

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

Patent

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Existing pipeline renewing method and apparatus therefor

Hydraulic and earth engineering – Subterranean or submarine pipe or cable laying – retrieving,... – With forming or cutting of pipe or cable

Patent

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Existing pipeline renewing method and apparatus therefor

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

Patent

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Extraction of underground pipe

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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