9 Optical devices, enhancers and correctors;, namely, microscopes; measuring, counting, alignment arid calibrating instruments, namely, coordinate measuring instruments, instruments for measuring lengtb and weight; scientific research and laboratory apparatus, educational apparatus and simulators, namely, microscopes; audio/visual and photographic devices, namely, audio recorders, video recorders, cameras; computers and computer hardware; computer components and parts, namely, blank hard disc drives; computer software for authorizing access to databases; data storage devices, namely, blank hard disc drives, blank flash drives, blank recordable CD-Rs and DVD-Rs; information technology and audiovisual equipment, namely, apparatus for recording, transmission, processing and reproduction of sound, images or data; safety, security, protection and signalling devices, namely, safety helmets, safety goggles; computer software for database management and document management; computer software packages, comprising computer software for database management and document management for use in the field of natural science and technology