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