LandOfFree - US Patents - Listing for Mining or in situ disintegration of hard material,Hard material disintegrating machines

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Tunnel boring machine

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Patent

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Tunnel boring machine anchor shoe structure and process of opera

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Patent

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Tunnel boring machine and method

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Patent

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Tunnel boring machine and method

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Patent

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Tunnel boring machine for hard ground and soft ground

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Patent

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Tunnel boring machine with continuous forward propulsion

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Patent

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Tunnel boring machine with crusher

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...

Patent

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Tunnel boring machine with dual support members

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Patent

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Tunnel boring machines

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...

Patent

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Tunnel drilling apparatus with drill waste removal

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...

Patent

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Tunnel drilling machine or tube-driving machine

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Patent

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Tunnel driving apparatus

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means

Patent

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Tunnel driving apparatus

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means

Patent

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Tunnel driving apparatus with cutter arms internal and external

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means

Patent

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Tunnel excavating machine

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...

Reexamination Certificate

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Tunnel excavator

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With material-handling means

Patent

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Tunnel excavator

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Stepper-type advance-causing means

Patent

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Tunnel excavator

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means

Patent

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Tunnel excavator with crawler drive and roof support bearing...

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means

Reexamination Certificate

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Tunnel excavator with S-shaped soil plate

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...

Reexamination Certificate

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