Perfected pipe for footwear storms. (Machine-translation by Google Translate, not legally binding)

摘要

Improved hose for footwear, equipped with a flange in its upper mouth, characterized by the fact that its entire surface of external revolution offers alternating zones of two different diameters, being produced between those of smaller diameter and those of greater diameter. Perimetral steps, which contribute to the perfect anchorage and immobilization of the tubular inside the holes that have lasted the lasts. (Machine-translation by Google Translate, not legally binding)