DIFF Subgroup
B23K 26/1435 Full Title
Working by laser beam, e.g. welding, cutting or boring > using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor (B23K26/12 takes precedence)
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.