74172822
Jun 4, 1991
Dec 8, 1992
computer systems comprising computer hardware and software for use in the fields of artificial intelligence, imaging, graphics, human-computer interaction, electronic controls for machine intelligence and robotics, electro-optical sensors for location and targeting, and three dimensional modeling and rapid-prototyping, comprising CAD (computer-aided design), CAM (computer-aided manufacture), computer numerical machines and automated manufacture
Electrical and Scientific Apparatus