IPC Definitions - January 01, 2012

E21B 47/08 - Definition fr

Definition statement

This group covers:

Processes or apparatus for determining the length of a line segment that initiates at a point on the periphery of a borehole, passes through the borehole center and terminates at another point on the periphery of the borehole, or a similar measurement, e.g. a similar line segment between opposed points of elliptically shaped borehole or tubing or measuring tubing thickness.

Informative references

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

Measuring diameter in general

G01B