IPC Definitions - January 01, 2012

E21B 47/12 - Definition fr

Definition statement

This group covers:

Processes or apparatus in which an information or control signal is sent to or from equipment located in the borehole over an information transmission link, for the purpose of measuring while boring.

Informative references

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

Remote signaling in general

G08C