DIFF Subgroup
B24B 31/0212 Full Title
Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor (abrasive blasting machines B24C3/26) > involving rotary barrels
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.