DIFF Subgroup
F24D 3/10 Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Hot-water central heating systems > Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks
CPC:
Hot-water central heating systems (district heating systems F24D10/00; central heating systems using heat accumulated in storage masses F24D11/00) > Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.
Child Classifications
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