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WO9905052A1
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Conveyor for ultra thin seam coal mining
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WO9835133A1
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Mining ultra thin coal seams
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US5582466A
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Advance/retreat cutting miner with simple conveyor
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Curvilinear haulage system
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Helical snake
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Power spiral conveyor section and method
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Highwall miner with conveyor module
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US4889392A
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Advance/retreat cutting miner and method
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AU2563484A
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Mining machine
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Pitch seam mining
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Horizontal edna miner
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Maneuverable full face miner
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CA1059538A
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Method and apparatus for in-cutting and out-cutting during coal mining
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US4192550A
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Reflected light determination of geological strata
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US4172616A
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Cutting head with self-contained power source
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US4120535A
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Scoop-belt miner
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AU2141077A
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Mining machine
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US4037875A
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Full face miner
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US4003602A
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Method and apparatus for in-cutting and out-cutting during coal mining
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