DIFF Subgroup
E21B 23/08 Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells > Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
CPC:
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (setting of casings, screens or liners E21B43/10) > Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1980.
Child Classifications
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