Three-dimensional (3D) printers; 3D bioprinters for fabrication of living tissue models; computerized machines for the generation of 3D shaped parts; machines for manufacturing 3D models, namely, computer-aided modeling devices; computer- aided additive machines for manufacturing 3D objects; machines for manufacturing 3D models, namely, computer-aided modeling devices and associated computer hardware and software sold as a unit; computer-aided additive machines for manufacturing 3D objects an...