CPC Subgroup
F23J 11/08 for portable apparatus
Full Title
Devices for conducting smoke or fumes, e.g. flues (chimney stacks E04H12/28; removing cooking fumes from domestic stoves or ranges F24C15/20 ) > for portable apparatus
F23J 11/08 Devices for conducting smoke or fumes, e.g. flues (chimney stacks E04H12/28; removing cooking fumes from domestic stoves or ranges F24C15/20 ) > for portable apparatus