IPC Subgroup
E21C 35/04 Safety devices
Introduced: September 1968
Last revised: January 2006
Full Title
Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups , or > Safety devices
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- MINING OR QUARRYING