DIFF Subgroup
C02F 1/20 by degassing, i.e. liberation of dissolved gases (degasification of liquids in general B01D19/00; arrangement of degassing apparatus in boiler feed supply F22D)
Introduced: January 1980
Title
Titles differ between systems:
IPC: by degassing, i.e. liberation of dissolved gases
CPC: by degassing, i.e. liberation of dissolved gases (degasification of liquids in general B01D19/00; arrangement of degassing apparatus in boiler feed supply F22D)
Full Title
Full titles differ between systems:
IPC:
Treatment of water, waste water, or sewage > by degassing, i.e. liberation of dissolved gases
CPC:
Treatment of water, waste water, or sewage (C02F3/00 - C02F9/00 take precedence) > by degassing, i.e. liberation of dissolved gases (degasification of liquids in general B01D19/00; arrangement of degassing apparatus in boiler feed supply F22D)
No child classifications to compare. This is a leaf node in both IPC and CPC.