IPC Subgroup
E21C 25/22 Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
Introduced: September 1968
Last revised: January 2006
Full Title
Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam > Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- MINING OR QUARRYING
4 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- E21C 25/24 with flat jibs only
- E21C 25/26 with curved jibs only
- E21C 25/28 Chains or chain guides
- E21C 25/5 with equipment for cleaning the slit