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By fully coated rubber core, essentially characterized in that it consists of a core or core of spongy rubber either microporous or macroporous of any color, length and geometric shape which is solidly covered entirely by a rigid film of variable thickness either rubber natural, synthetic or plastic material whose film adapts to the core forming the envelope or becoming solid with the core. (Machine-translation by Google Translate, not legally binding)
PROCESS FOR PREPARING A FERRIMAGNETIC MATERIAL, AND MOLDED OBJECT, WHOLLY OR PARTLY MADE OF FERRIMAGNETIC MATERIAL, PREPARED IN ACCORDANCE WITH THIS PROCESS.
Apparatus for separation of solid materials, heterogeneos and of different degree of elasticity. (Machine-translation by Google Translate, not legally binding)