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Object responsive implement control system

Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Of hard material disintegrating machine
Patent

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Ocean floor surficial dredging apparatus

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water
Patent

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Ocean mining system and process

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water
Patent

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Oil collection and recovery system for in situ oil shale retort

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Oil mining configuration

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Oil recovery mining apparatus

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Oil recovery mining method and apparatus

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Oil shale retort flue gas cooling and cleaning

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Oil tank arrangement for mining apparatus and roof bolting...

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

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Omnidirectional drilling system

Mining or in situ disintegration of hard material – Processes – Forming blocks
Patent

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Open cast mining device and apparatus for testing the...

Mining or in situ disintegration of hard material – Processes
Reexamination Certificate

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Open cut mining apparatus

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent

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Open pit mine

Mining or in situ disintegration of hard material – Processes – With material-handling
Patent

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Open surface flotation method

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Open surface flotation method for extracted crude oil

Mining or in situ disintegration of hard material – With separation of materials
Patent

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Open-cut mining cutter

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Floor-working
Patent

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Operating a continuous miner

Mining or in situ disintegration of hard material – Automatic control; signaling or indicating – Ore/rock interface determination during cutting
Patent

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Operating head with phased fluid delivery

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Cleansing fluid passage
Patent

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Operation of an in situ oil shale retort

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
Patent

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Optimized kinetic energy machine for excavating underwater rock

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Horizontal cutter tooth orbit
Reexamination Certificate

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