IPC Subgroup
B28D 3/02 Machines
Introduced: September 1968
Last revised: January 2006
Full Title
Dressing mill discs or rollers > Machines
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- WORKING CEMENT, CLAY, OR STONE
- Subclass:
- WORKING STONE OR STONE-LIKE MATERIALS
1 direct subcode
Child Classifications
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- B28D 3/04 for grooving rollers