Hand stairway, perfected. (Machine-translation by Google Translate, not legally binding)

摘要

Hand ladder, perfected, especially designed to facilitate the performance of repair and entertainment work on overhead power lines supported by poles, characterized by comprising a series of elementary stairs, of predetermined length and constant width, each of which is equipped of own media. Of support against the post and fixing to it, whose stairs, essentially have at the ends of their uprights or stringers male and female elements, which allow to connect by simple plug some elementary stairs following others, to form a set endowed with the length that in each case is necessary. (Machine-translation by Google Translate, not legally binding)