Signalling apparatus, included in class 9, in particular acoustic, optical and radio signal transmitters, warning, blinking and flashing lights, signalling columns, buzzers, horns, included in class 9, sirens, bells, included in class 9, radio elements being accessories for signalling apparatus, included in class 9; Data processing apparatus and computers, in particular digital computers, technical, electric and electronic instruments for data processing and data storage; Electronic measuring, detecting, monitoring and inspecting apparatus for signalling apparatus; Housing for electronic measuring, detecting, monitoring and inspecting apparatus; Parts and replacement parts for the aforesaid data processing apparatus and computers, technical, electric and electronic instruments for data processing and data storage (included in class 9); Display screens; Printers; Data carriers equipped with programs (included in class 9); Computer programs and software