More topics under "B07 - Separating solids from solids; Sorting" (57,302) |
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B07B - Separating solids from solids by sieving, screening, or sifting or by using gas currents; Other separating by dry methods applicable to bulk material, e.g. loose articles fit to be handled like bulk material (35,530) |
B07C - Postal sorting; Sorting individual articles, or bulk material fit to be sorted piece-meal, e.g. by picking (21,772) |