DIFF Main Group
F24D 11/00 Central heating systems using heat accumulated in storage masses (self-contained storage heating units F24D15/02)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Central heating systems using heat accumulated in storage masses
CPC: Central heating systems using heat accumulated in storage masses (self-contained storage heating units F24D15/02)
Full Title
Full titles differ between systems:
IPC:
Central heating systems using heat accumulated in storage masses
CPC:
Central heating systems using heat accumulated in storage masses (self-contained storage heating units F24D15/02)
CPC subdivides this area 4x more granularly than IPC with 3 additional codes.
3 codes are CPC-only extensions.
Child Classifications
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