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Method of mining flat seams prone to heaving
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Method of control over quality of ore
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Method of coal seams extraction
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Machine-tool for working of stone plates
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Movable slurry-pumping setup
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Downhole damper
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Method for saving sections of development workings
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Apparatus for bending reinforcement of building products
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Device for recovery of sapropel
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Inclined belt conveyor
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Method of composition material producing
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Method for reducing metals from mixture of their oxides
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Support section
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Method for protection of interchamber pillars from destruction
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Method for regulation of thermal conditions in railway tunnels in winter period
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Ventilation gate for railroad tunnel
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Device for prevention of ice formation in vehicular traffic tunnel
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Stemming for big wells
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Method of mineral concentration and device for its embodiment
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Method and device for transmitting information about drilling parameters and control of hydraulic bottom-hole motors
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