Case number 3

Curve of 4. order as slice Cylindroid made of carton discs Right-angled paraboloid Cylindroid
Cylindroid combined with a right-angled paraboloid Cone of third order Cone of third order Cone of third order
Cone of third order Model Tensegrity Cone of third order Cone of third order
Cone of third order Kummer surface with 8 real double points Kummer surface with 16 double points Kummer areas with 8 respectively 16 respectively 4 real intersections

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