IPC Main Group
B21D 51/00 Making hollow objects
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- Subclass:
- WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
2 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- B21D 51/02 characterised by the structure of the objects
- B21D 51/16 characterised by the use of the objects