IPC Subgroup
E21C 25/54 Slitting by unguided cutter cables or cutter chains or by unguided tools drawn along the working face by cables or the like
Introduced: September 1968
Last revised: January 2006
Full Title
Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam > Slitting by unguided cutter cables or cutter chains or by unguided tools drawn along the working face by cables or the like
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- MINING OR QUARRYING