having more than one heat source (using heat pumps, in water central heating systems F24D3/18; in air central heating systems F24D5/12; in systems using heat storage masses F24D11/02)

Introduced: January 1990

Title

Titles differ between systems:

IPC: having more than one heat source

CPC: having more than one heat source (using heat pumps, in water central heating systems F24D3/18; in air central heating systems F24D5/12; in systems using heat storage masses F24D11/02)

Full Title

Full titles differ between systems:

IPC:

Other central heating systems > having more than one heat source

CPC:

Other central heating systems > having more than one heat source (using heat pumps, in water central heating systems F24D3/18; in air central heating systems F24D5/12; in systems using heat storage masses F24D11/02)

No child classifications to compare. This is a leaf node in both IPC and CPC.