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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
B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
FR441401D1912-03-041912-03-16
Control for oscillating devices such as mechanical screens (plansichters)
ExpiredFR441401A
(en)