Apparatus for medical and therapeutic purposes, namely, apparatus for exercising the legs for therapeutic purposes and for the prevention of deep vein thrombosis and of the pooling of blood in the legs, apparatus for the prevention or amelioration of deep vein thrombosis, namely, leg exercise device, and apparatus for prevention or amelioration of the pooling of blood in the legs, namely, leg exercise device

measuring apparatus, namely, coordinate measuring machines for use in locating three dimensional positions of objects