Nr. 151
Chord central point area of a space curve of 4. order.
Row: 1

Nr. 152
Surface of 12. order
Row: 1

Nr. 237
Curvature centre point surface of the single-leaf hyperboloid
Row: 2

Nr. 238
Curvature centre point surface of the single-leaf hyperboloid
Row: 2

Nr. 238
Curvature centre point surface of the single-leaf hyperboloid
Row: 2

Nr. 239
Curvature centre point surface of the triaxial ellipsoid
Row: 3

Nr. 240
Curvature centre point surface of the triaxial ellipsoid
Row: 3

Nr. 241
Curvature centre point surface of the triaxial ellipsoid
Row: 3

Nr. 242
Curvature centre point surface
Row: 3

Nr. 302
Surface of 5. order with many symmetry attributes
Row: 4

Nr. 345
Curvature centre point surface
Row: 4