LandOfFree - US Patents - Listing for Mining or in situ disintegration of hard material,Processes

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Pre-bolting system for underground mines

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure

Patent

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Pressure differential mining tool

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

Patent

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Prestressed roof support system

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

Patent

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Pretreatment for fracturing coal seams

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

Patent

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Process and apparatus for fragmenting rock and like material usi

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

Patent

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Process for demolishing a bridge structure

Mining or in situ disintegration of hard material – Processes

Patent

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Process for hydraulically mining coal

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

Patent

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Process for hydraulically mining coal employing a cutting monito

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

Patent

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Process for inerting a coal mining site

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

Patent

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Process for making general use of the earth's heat and obtaining

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

Patent

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Process for preparing the exposed surface of a rock formation to

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

Patent

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Process for separation of asbestos-containing material and preve

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

Patent

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Process for sinking of shafts

Mining or in situ disintegration of hard material – Processes

Patent

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Process for suppressing dust in mines

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

Patent

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Process for the extraction of thick coal seams

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure

Patent

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Process of and an arrangement for mining

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

Patent

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Production of lignite from underground deposits

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

Patent

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Pumpable product hydraulic mining apparatus and method

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

Patent

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Quarry operation

Mining or in situ disintegration of hard material – Processes – Explosive

Patent

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Radial mining method

Mining or in situ disintegration of hard material – Processes – Stabilizing underground structure

Patent

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