Case number 6

Cubis ellipse The four types of space curves of 3. order on gypsum cylinders of 2. order. The four types of space curves of 3. order on gypsum cylinders of 2. order. The four types of space curves of 3. order on gypsum cylinders of 2. order.
The four types of space curves of 3. order on gypsum cylinders of 2. order. Tangent surface of the space curve of 4. order Space curve of 4. order Ruled surface of 3. order

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