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Conveyor system and method for removing slack in conveyor
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Gathering mechanism for coal-loading machines.
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Mining and loading or loading machine
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Scraper chain conveyor with rack for the chainless feed of winning machines
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Mining machine with externally mounted drive means
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Plow mining method and apparatus
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Safety wall cutting through method employed in long wall mining
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Mining machine
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Горна машина дл разработки полезных ископаемых
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Cutter loaders having reversible cutter drums
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Longwall mineral mining installation
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Plane
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Mine system
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Zařízení pro otáčení výložníku s rozpojovacím orgánem razících kombajnů
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Комбайн очистной
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Apparatus on drum shearer for cutting through safety wall in long wall mining
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Coal cutting machine and the like
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Mining machine
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Harley et al.
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Langbeinite... mining and processing |
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Mining machine
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Проходческий комбайн дл проходки восстающих горных выработок по углю
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Mining machine
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