3D Systems Corporation, through its subsidiaries, engages in the design, development, manufacture, marketing, and service of 3-D printing, prototyping, manufacturing systems, and related products and materials. The company’s products enable three-dimensional objects to be produced directly from computer data. Its proprietary systems are used to produce physical objects from digital data using commonly available computer-aided design software (CAD); or other digital-media devices, such as engineering scanners and MRI or CT medical scanners. The company’s products include stereolithography or SLA equipment, selective laser sintering or SLS equipment, 3-D printing or InVision...