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PCE
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DIFF Subgroup
F01B 25/18

preventing rotation in wrong direction

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Regulating, controlling or safety means > Safety means responsive to specific conditions > preventing rotation in wrong direction

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) > preventing rotation in wrong direction

No child classifications to compare. This is a leaf node in both IPC and CPC.