9 [ Scientific, electric, photographic, optical, weighing, measuring, signaling, checking and teaching apparatus and instruments for use in rapid prototyping, in particular for use in laser-sintering systems, namely, lasers, optical lenses and lens systems, scanners, deflection mirrors, beam expanders, shutters, sensors, actuators, material and part handling systems, namely, coordinate measuring machines; data processing equipment, namely, computers and data transmission and reception equipment, namely, data carrier drives and writers, computer network components; data processing programs, namely, ] computer software for use in the field of rapid prototyping, tooling and manufacturing, namely, software to place parts in a defined build envelope, CAD software and software for controlling machines for rapid prototyping, tooling and manufacturing based on CAD data [ ; recorded and unrecorded data carriers, namely, optical discs, namely, CD's, CD-ROMs, CD(RW)s, DVDs, magneto-optical discs, magnetic, tapes, memory cards, hard discs, changeable hard discs, floppy discs, the recorded discs featuring recorded digitized data for product designs, mathematical or other scientific data, scanned or otherwise digitized representations of physical objects such as human bodies or parts thereof, buildings, structures, geographical or geological features]