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Method of creating a safe environment in salt mining

Mining or in situ disintegration of hard material – Processes – Mine safety
Patent

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Method of creating an underground batch retort complex

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

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Method of cutting and cutting rotative bit

Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Rolling or rotatable-type bit mount
Patent

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Method of detonating explosives for fragmenting oil shale format

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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Method of disposing solid sodium chloride while selectively solu

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Input and output wells
Patent

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Method of downhole hydraulicking mineral resources

Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid
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Method of downhole hydraulicking of mineral resources

Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid
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Method of electric smelting to matte in situ

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Melted material recovered
Patent

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Method of electro-hydraulic control of longwall mine units

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

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Method of enhancing recovery of oil from pillars adjacent in sit

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

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Method of enhancing the removal of methane gas and associated fl

Mining or in situ disintegration of hard material – Processes – Breaking down by direct contact with fluid
Patent

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Method of excavating overburden in surface mining operations

Mining or in situ disintegration of hard material – Processes – With material-handling
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Method of excavating rock caverns by blasting

Mining or in situ disintegration of hard material – Processes – Explosive
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Method of excavation and apparatus therefor

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

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Method of explosive fracturing of a formation at depth

Mining or in situ disintegration of hard material – In situ conversion of solid to fluid – Dissolving or chemical reaction
Patent

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Method of extraction of nodular sediments or the like from the s

Mining or in situ disintegration of hard material – With separation of materials – Separation below surface of earth or water
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Method of forming a rubblized in-situ retort

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

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Method of forming an in situ oil shale retort

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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Method of forming an in situ oil shale retort in formation with

Mining or in situ disintegration of hard material – Tunnel recovery of fluid material
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Method of forming an in situ oil shale retort with void volume a

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