Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; loudspeakers; cabinets for loudspeakers; horns for loudspeakers; condensers, especially for loudspeaker frequency transformers; transistors (electronic); transformers; frequency meters; condensers (capacitors); condensers (optical); frequency transformer; pieces for frequency transformers; car radios; car CD players; navigation systems; car loudspeakers; hifi output transformer; control panels; material for electric wires (wires, cables)