DIFF Subgroup
B08B 9/023 Cleaning the external surfaces
Introduced: January 2000
Full Title
Full titles differ between systems:
IPC:
Cleaning hollow articles by methods or apparatus specially adapted thereto > Cleaning pipes or tubes or systems of pipes or tubes > Cleaning the external surfaces
CPC:
Cleaning hollow articles by methods or apparatus specially adapted thereto > Cleaning pipes or tubes or systems of pipes or tubes (apparatus for cleaning metal pipes by chemical methods C23G3/04) > Cleaning the external surfaces
No child classifications to compare. This is a leaf node in both IPC and CPC.