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

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Device to secure an underground pipe installer in a trench

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

Patent

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Double walled pipe, jacking method and pipe end structure of lea

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

Patent

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Double walled pipe, jacking method and pipe end structure of lea

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

Patent

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Drilling apparatus

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

Patent

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Drilling method and apparatus for large diameter pipe

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

Patent

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Dual capstan puller and method

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

Reexamination Certificate

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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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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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Existing pipeline renewing method and apparatus therefor

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

Extraction of underground pipe

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

Patent

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Flexible sleeve elbow for gas service lines

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

Gravel-packed pipeline and method and apparatus for installation

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

Ground anchors

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

Ground-boring machine

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

Guided mole

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

Horizontal pipeline boring apparatus and method

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

Hydraulic apparatus for installing piping below ground

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

Hydraulic control arrangement for a pipe relining machine

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Inflatable underground structure liner

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

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Intermediate pipe-jacking apparatus

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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