SEMI-CLOSED DUST GUIDE DEVICE BETWEEN HYDRAULIC SUPPORTS OF FULLY MECHANIZED COAL MINING FACE OF COAL MINE
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Main Authors | , , , , , , , , , , , , , , |
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Format | Patent |
Language | English |
Published |
25.05.2022
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Online Access | Get full text |
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Bibliography: | Application Number: ZA20220003761 |
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