IPC Definitions - January 01, 2012

E21B 47/026 - Definition fr

Definition statement

This group covers:

Processes or apparatus for finding the slant of the drilled formation strata or the path of the drilled formation strata with respect to magnetic north.

Informative references

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

Formation testing

E21B 49/00

Apparatus for obtaining oriented cores

E21B 25/16