DIFF Subgroup
F24B 7/04 with internal air ducts
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Stoves, ranges, or flue-gas ducts, with additional provisions for convection heating > with internal air ducts
CPC:
Stoves, ranges or flue-gas ducts, with additional provisions for convection heating (stoves with open fires characterised by use of heat exchange means F24B1/188) > with internal air ducts
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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