IPC Subgroup
E21B 23/01 for anchoring the tools or the like
Introduced: January 1995
Last revised: January 2006
Full Title
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells > for anchoring the tools or the like
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS