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Individual
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Individual
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Priority to ES0012189UpriorityCriticalpatent/ES12189Y/en
Publication of ES12189UpublicationCriticalpatent/ES12189U/en
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Publication of ES12189YpublicationCriticalpatent/ES12189Y/en
An improved trapezoidal type belt, essentially characterized by the fact that on its two opposite longitudinal side faces, or those where friction occurs against the walls of the throat of the pulley, a series of grooves or grooves are made in half a reed or otherwise, whose direction is preferably perpendicular to the length of the belt, although they may also be oblique with respect to it, or crossed with each other or of another arrangement, appropriately distancing them according to the cases and in arbitrary number, more convenient for the purposes that are persecuted. (Machine-translation by Google Translate, not legally binding)