CPC Subgroup
F24D 1/04 operating with exhaust steam
Full Title
Steam central heating systems (district heating systems F24D10/00; central heating systems using heat accumulated in storage masses F24D11/00) > operating with exhaust steam
F24D 1/04 Steam central heating systems (district heating systems F24D10/00; central heating systems using heat accumulated in storage masses F24D11/00) > operating with exhaust steam