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B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
B07B4/04—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall in cascades
FR505586A1919-06-301919-10-30Perfectionnements aux machines à nettoyer les matières granulaires concassées et le grain
ExpiredFR505586A
(fr)