DIFF Subgroup
F23N 3/02 Regulating draught by direct pressure operation of single valves or dampers
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Regulating air supply or draught > Regulating draught by direct pressure operation of single valves or dampers
CPC:
Regulating air supply or draught (conjointly with fuel supply F23N1/00) > Regulating draught by direct pressure operation of single valves or dampers
No child classifications to compare. This is a leaf node in both IPC and CPC.