IPC Main Group
B21H 9/00 Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- Subclass:
- MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
1 direct subcode
Child Classifications
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- B21H 9/02 for screw-rolling machines