DIFF Subgroup
F01D 25/10 Heating, e.g. warming-up before starting
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups > Cooling; Heating; Heat insulation > Heating, e.g. warming-up before starting
CPC:
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups > Cooling (of machines or engines in general F01P); Heating; Heat-insulation (of blade-carrying members, of blades F01D5/00) > Heating, e.g. warming-up before starting
No child classifications to compare. This is a leaf node in both IPC and CPC.