284111 Machine tools for working metal by removal of material by laser, ultrasonic and the like

28411110 Machine-tools for working any material by removal of material, operated by laser or other light or photon beam processes 28411130 Machine-tools for working any material by removal of material, operated by ultrasonic processes (excluding machines for the manufacture of semiconductor devices or of electronic integrated circuits) 28411150 Machine tools for working any material by removal of material, operated by electro-discharge processes 28411170 Machine-tools for working any material by removal of material, operated by electro-chemical, electron-beam, ionic-beam or plasma arc processes 28411180 Machine tools for working any material by removal of material, operated by ultrasonic processes, for the manufacture of semiconductor devices or of electronic integrated circuits