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

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Shield apparatus for use in tunnelling

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

Patent

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Shield driving machine

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

Patent

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Shield driving process for enlargement

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

Patent

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Shield excavator

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

Patent

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Shield for constructing tunnels with in-situ formed concrete lin

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

Patent

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Shield for tunneling and mining

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

Patent

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Shield tail sealing

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

Patent

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Shield tunneling apparatus

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

Patent

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Shield tunneling machine

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

Patent

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Shield tunneling machine

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

Patent

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Shield tunneling machine

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

Patent

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Shield tunneling method and assembling and disassembling apparat

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

Patent

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Shield tunneling method and shield machine therefor

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

Patent

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Shield tunneling method using flexible segments, flexible segmen

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

Patent

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Shield tunnelling apparatus

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

Patent

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Shield type tunneling machine

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

Patent

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Shielded tunnel excavator

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

Patent

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Shielding apparatus

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

Patent

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Shuttering for erecting a concrete tunnel lining

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

Patent

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Shuttering for establishing concrete lining of tunnels

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

Patent

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