DIFF Subgroup
F16K 17/14 with fracturing member
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Safety valves; Equalising valves > opening on surplus pressure on one side; closing on insufficient pressure on one side > with fracturing member
CPC:
Safety valves; Equalising valves, > opening on surplus pressure on one side; closing on insufficient pressure on one side (check valves F16K15/00) > with fracturing member
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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