9 Computer software and computer software containing databases for development and computer-aided design of mechanical or electro-mechanical parts, products or components, and for the analysis, optimization, creation, visualization, simulation, revision and reproduction of mechanical or electro-mechanical parts, products or components used in product development and manufacturing; computer software enabling audio and video tele-conferences or global computer information network conferences; and devices for the storage or implementation of the above-mentioned computer software, in particular magnetic, electronic and optical data carriers and memory cards for development and computer aided design, creation and documentation of mechanical or electro-mechanical parts, products or components stored on electronic, magnetic or optical media and software for teaching computer aided design of metal parts, products and components stored on electronic, magnetic or optical media