IPC Main Group
E21C 31/00 Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- MINING OR QUARRYING
Related Keywords
DRIVING -mechanisms for mining machines
4 direct subcodes
Child Classifications
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- E21C 31/02 for cutting or breaking-down devices
- E21C 31/08 for adjusting parts of the machines
- E21C 31/1 for slewing parts of the machines
- E21C 31/12 Component parts