Downloadable computer software, namely, computer software for use in connection with three-dimensional (3D) printing; downloadable computer software, namely, extensible application programmer interface software for use in connection with three-dimensional (3D) printing; downloadable computer software, namely, computer software for use in development of 3D models and applications for use in printing of three-dimensional (3D) objects; 3D printing computer software platform, namely, extensible software application programming interfaces and development tools for 3D modeling and delivery of design data

Providing temporary use of on-line non-downloadable software for use in connection with three-dimensional (3D) printing; providing temporary use of on-line non-downloadable software development tools; providing temporary use of on-line non-downloadable 3D printing computer software platform, namely, extensible software application programming interfaces, development tools for 3D modeling and delivery of design data