CPC Subgroup
F23D 14/56 for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening or for heating workpieces
Full Title
Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid > Details > Nozzles > for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening or for heating workpieces