DIFF Subgroup
F24D 3/04 with the water under high pressure
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Hot-water central heating systems > with the water under high pressure
CPC:
Hot-water central heating systems (district heating systems F24D10/00; central heating systems using heat accumulated in storage masses F24D11/00) > with the water under high pressure
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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