IPC Subgroup
B21J 5/04 by directly applied fluid pressure or explosive action
Introduced: September 1968
Last revised: January 2006
Full Title
Methods for forging, hammering, or pressing; Special equipment or accessories therefor > by directly applied fluid pressure or explosive action
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- Subclass:
- FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES