IPC Main Group
E21C 41/00 Methods of underground or surface mining; Layouts therefor
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- MINING OR QUARRYING
Related Keywords
mining CLAY(S)mining GOLDmining METAL(S)mining ORESmining ROCK(S)quarrying SLATE(S)mining STONE(S)quarrying STONE(S)
3 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- E21C 41/16 Methods of underground mining; Layouts therefor
- E21C 41/26 Methods of surface mining; Layouts therefor
- E21C 41/32 Reclamation of surface-mined areas