DIFF Subgroup
F23K 5/20 Preheating devices (in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44)
Introduced: January 1990
Title
Titles differ between systems:
IPC: Preheating devices
CPC: Preheating devices (in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44)
Full Title
Full titles differ between systems:
IPC:
Feeding or distributing other fuel to combustion apparatus > Liquid fuel > Details thereof > Preheating devices
CPC:
Feeding or distributing other fuel to combustion apparatus > Liquid fuel > Details thereof > Preheating devices (in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44)
No child classifications to compare. This is a leaf node in both IPC and CPC.