IPC Definitions - January 01, 2012

E21B 47/007 - Definition fr

Definition statement

This group covers:

Processes or apparatus for finding strains in tubular borehole conduits.

References relevant to classification in this group

This group does not cover:

Locating blocked portions of pipes

E21B 47/09

Informative references

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

Measuring stress in general

G01L