DIFF Subgroup
F01B 25/16 Safety means responsive to specific conditions (against water hammer or the like in steam engines F01B31/34)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Safety means responsive to specific conditions
CPC: Safety means responsive to specific conditions (against water hammer or the like in steam engines F01B31/34)
Full Title
Full titles differ between systems:
IPC:
Regulating, controlling or safety means > Safety means responsive to specific conditions
CPC:
Regulating, controlling or safety means (controlling combustion engines F02D) > Safety means responsive to specific conditions (against water hammer or the like in steam engines F01B31/34)
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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