CPC Subgroup
B07B 13/07 Apparatus in which aggregates or articles are moved along or past openings which increase in size in the direction of movement
Full Title
Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices (grading eggs A01K43/04) > according to size > Apparatus in which aggregates or articles are moved along or past openings which increase in size in the direction of movement
1 direct subcode
Child Classifications
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