DIFF Subgroup
F24F 1/44 characterised by the use of internal combustion engines
Introduced: January 2011
Full Title
Full titles differ between systems:
IPC:
Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station > Separate outdoor units, e.g. outdoor unit to be linked to a separate room unit comprising a compressor and a heat exchanger > characterised by the use of internal combustion engines
CPC:
Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station > Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger > characterised by the use of internal combustion engines
No child classifications to compare. This is a leaf node in both IPC and CPC.