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

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Method and apparatus for advancing and supporting an underground

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

Patent

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Method and apparatus for mining

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

Patent

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Method and apparatus for roof bolting and transferring mined mat

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

Patent

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Method and apparatus for supporting the roof of an underground m

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

Patent

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Method and device for producing underground cavities using a dri

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

Patent

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Method for longwall mining with side-by-side arch sections

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

Patent

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Method for opening mineral deposit and subsequent mining thereof

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

Patent

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Method for working steeply dipping vein ores with vertically dow

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

Patent

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Method of circle mining of ore

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

Patent

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Method of installation of cuttable mine support

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

Reexamination Certificate

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Method of mining

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

Patent

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Method of mining flat-dipping and sloping beds of a mineral with

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

Patent

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Method of mining heavy coal seams in two or more benches

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

Patent

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Method of mining of thick seam materials

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

Patent

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Method of recovering useful minerals from subterranean deposits

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

Patent

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Method of underground mining by pillar extraction

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

Patent

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Method of, and apparatus for, winning mineral material

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

Patent

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Methods of translating a face support

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

Patent

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Mine self-advancing roof support and method of relocating a mine

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

Patent

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Mineral mining installation

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

Patent

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