LandOfFree - US Patents - Listing for Hydraulic and earth engineering,Underground passageway, e.g., tunnel

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Method and apparatus for formation of a tunnel lining

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Method and apparatus for grouting of tunnel liners

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Method and apparatus for modifying the cross-sectional profile o

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and apparatus for relining underground passageway

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and apparatus for removing contaminants from a duct or pi

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Vertical

Method and apparatus for supporting the wall of an upwardly exca

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Method and apparatus for the advancing of a sliding form

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and apparatus for the production of underground pipelines

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and apparatus for tunnel lining

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Method and apparatus for tunnelling

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and arrangement for concreting vertical shafts

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel

Method and device for building in the ground vertical walled str

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Method and device for controlling the trajectory of a shield-typ

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Method and device for distributing pumpable thick matter into se

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring

Method and device for driving a tunnel

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Vertical

Method and device for installing a shaft lining in shafts throug

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and device for removing resilient gallery lining frames i

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and device for stabilizing a cavity excavated in...

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining

Method and device for stabilizing a cavity excavated in...