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E02F3/08—Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain
E02F3/10—Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain with tools that only loosen the material, i.e. with cutter-type chains
Machine mobile pour nettoyer un lit de ballast, comportant des dispositifs de nivellement et de compactage, et procede pour traiter un lit de ballast a l'aide d'une telle machine