Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signaling; 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; Compact discs; DVD players and digital recording media; Data processing apparatus; Computers; Computer software; Lenses for astrophotography; Apparatus and i...