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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
B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
FR77017A1965-09-211966-09-20
Method and device for separating a mixture of grains into at least two final fractions
ExpiredFR1501038A
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