DIFF Subgroup
A47J 36/24 Warming devices
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Parts, details or accessories of cooking-vessels > Warming devices
CPC:
Parts, details or accessories of cooking-vessels (A47J27/00 - A47J33/00 take precedence insofar as these parts, details or accessories are restricted to a particular kind of cooking-vessel provided for in a single one of these groups) > Warming devices
CPC subdivides this area 3x more granularly than IPC with 6 additional codes.
6 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- A47J 36/26 Devices for warming vessels containing drinks or food, especially by means of burners ; Travelling cookers, e.g. using petroleum or gasoline with one burner IPC+CPC Available in IPC and CPC
- A47J 36/28 Warming devices generating the heat by exothermic reactions, e.g. heat released by the contact of unslaked lime with water IPC+CPC Available in IPC and CPC
- A47J 36/30 Devices for warming by making use of burning cartridges or other chemical substances IPC+CPC Available in IPC and CPC