Computer controlled printers, namely, three dimensional (3D) printers; computer software for computer-aided-design (CAD) of dental crowns, jewelry wax patterns, hearing aid shells; computer software for generation of computer-aided manufacturing (CAM) data, 3D modeling, 3D visualisation, generation of 3D production data, data file compression; computer e-commerce software to allow users to perform electronic business transactions via a global computer network; computer software for generation...