Automatic fire extinguishing systems; sprinkler systems for fire protection; fire plugs; fire hose nozzles; fire alarms; fire detectors; smoke detectors; smoke alarms; fire and smoke detectors; gas leak alarms; security monitoring system; electric locks; access control system recorded with control programs using card readers, contactless card readers or numerical keypads; wire communication machines and apparatus; transmission machines and apparatus [for telecommunication]; broadcasting machines and apparatus; radio communication machines and apparatus; radio application machines and apparatus; display units for computers; electronic circuits; computer programs.