IPC Definitions - January 01, 2012
E21B 47/01 - Definition
This group covers:
Processes or apparatus for holding a data collection device in a particular position on a boring tool, boring tool string or cable-carried tool;
Processes or apparatus for shielding data collection devices on a boring tool string or cable carried tools from damage.
Attention is drawn to the following places, which may be of interest for search:
Flexible centering means | E21B 17/10 |
Setting or locking tools in boreholes or wells | E21B 23/00 |