DIFF Subgroup
F01N 3/043 Full Title
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust (electric control F01N9/00; monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N11/00) > for cooling, or for removing solid constituents of, exhaust (by means of electric or electrostatic separators F01N3/01 ) > using liquids
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.