DIFF Subgroup
F02K 9/54 Leakage detectors; Purging systems; Filtration systems
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof > using liquid or gaseous propellants > Feeding propellants > Leakage detectors; Purging systems; Filtration systems
CPC:
Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof > using liquid or gaseous propellants (F02K9/72 takes precedence) > Feeding propellants > Leakage detectors; Purging systems; Filtration systems
No child classifications to compare. This is a leaf node in both IPC and CPC.