DIFF Subgroup
E21B 33/1295 actuated by fluid pressure
Introduced: January 1995
Full Title
Full titles differ between systems:
IPC:
Sealing or packing boreholes or wells > in the borehole > Packers; Plugs > with mechanical slips for hooking into the casing > actuated by fluid pressure
CPC:
Sealing or packing boreholes or wells > in the borehole > Packers; Plugs (used for cementing E21B33/134, E21B33/16) > with mechanical slips for hooking into the casing (E21B33/122, E21B33/124 take precedence) > actuated by fluid pressure
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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