DIFF Main Group
E21F 3/00 Cooling or drying of air (air-conditioning rooms or spaces in general F24F)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Cooling or drying of air
CPC: Cooling or drying of air (air-conditioning rooms or spaces in general F24F)
Full Title
Full titles differ between systems:
IPC:
Cooling or drying of air
CPC:
Cooling or drying of air (air-conditioning rooms or spaces in general F24F)
No child classifications to compare. This is a leaf node in both IPC and CPC.