IPC Subgroup
E21C 31/12 Component parts
Introduced: September 1968
Last revised: January 2006
Full Title
Driving means incorporated in machines for slitting or completely freeing the mineral from the seam > Component parts
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- MINING OR QUARRYING