IPC Subgroup
B24D 11/04 Zonally-graded surfaces
Introduced: September 1968
Last revised: January 2006
Full Title
Constructional features of flexible abrasive materials; Special features in the manufacture of such materials > Zonally-graded surfaces
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- GRINDING; POLISHING
- Subclass:
- TOOLS FOR GRINDING, BUFFING OR SHARPENING