DIFF Subgroup
B01D 21/22 Safety mechanisms
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Separation of suspended solid particles from liquids by sedimentation > Construction of the scrapers or the driving mechanisms for settling tanks > Safety mechanisms
CPC:
Separation of suspended solid particles from liquids by sedimentation ( ; differential sedimentation B03D3/00; devices for separating or removing fatty or oily substances or similar floating material from water, waste water or sewage C02F1/40) > Construction of the scrapers or the driving mechanisms for settling tanks > Safety mechanisms
No child classifications to compare. This is a leaf node in both IPC and CPC.