Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B07
SEPARATING SOLIDS FROM SOLIDS; SORTING
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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
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1/00
Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
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B07B1/46
Constructional details of screens in general; Cleaning or heating of screens
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