IPC Subgroup
B23B 41/1 for boring holes in steam boilers
Introduced: September 1968
Last revised: January 2006
Full Title
Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor > for boring holes in steam boilers
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- Subclass:
- TURNING; BORING