IPC Definitions - January 01, 2012

E21B 47/017 - Definition fr

Definition statement

This group covers:

Processes or apparatus for shielding the data collection device against thermal effect, vibration, pressure, debris or the like.

Informative references

Attention is drawn to the following places, which may be of interest for search:

Cooling or insulating arrangements for boreholes or wells

E21B 36/00