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

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Caisson sinking method

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

Patent

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Cast concrete element for underground tubular structure

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

Patent

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Circular heading machine

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

Patent

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Collapsible tunnel liner section and method of lining a tunnel

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

Patent

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Collapsible tunnel liner section and method of lining a tunnel

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

Patent

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Concrete lining machine

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

Patent

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Concrete lining of drilled shaft

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

Patent

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Construction of a concrete lined chamber

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

Patent

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Construction of tunnels or pipes for use in civil engineering wo

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

Patent

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Construction of underground galleries

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

Patent

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Containment casing for a deep well gravity pressure reactor vess

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

Patent

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Continuous gallery construction, in particular for underground m

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

Patent

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Continuous method of realization of works underground,...

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

Reexamination Certificate

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Contractible mine stopping and contractible block member for use

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

Patent

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Contractible mine stopping and contractible block member for use

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

Patent

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Control method and control equipment for drilling apparatus

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

Patent

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Controlling apparatus for excavator

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

Patent

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Corner area for tubbing seals

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

Patent

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Corrugated structural panels

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

Patent

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