IPC Subgroup
B21H 1/06 rings of restricted axial length
Introduced: September 1968
Last revised: January 2006
Full Title
Making articles shaped as bodies of revolution > rings of restricted axial length
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
3 direct subcodes
Child Classifications
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