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

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Tunnel driving apparatus

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

Patent

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Tunnel driving apparatus

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

Patent

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Tunnel driving apparatus

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

Patent

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Tunnel excavating machine and excavating method

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

Reexamination Certificate

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Tunnel excavation apparatus

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

Patent

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Tunnel excavator

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

Patent

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Tunnel excavator

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

Patent

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Tunnel lining form

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

Patent

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Tunnel lining method and apparatus suitable for the purpose

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

Patent

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Tunnel-driving and support system

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

Patent

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Tunnel-driving apparatus

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

Patent

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Tunneling machine

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

Patent

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Tunnelling

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

Patent

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Tunnelling and tunnel relining equipment

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

Patent

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Underground excavator

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

Patent

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