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Priority to ES9003585UpriorityCriticalpatent/ES1016151Y/en
Publication of ES1016151UpublicationCriticalpatent/ES1016151U/en
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Publication of ES1016151YpublicationCriticalpatent/ES1016151Y/en
Ladder improved, of the type comprising structure extended to the top, complete with a platform of superior work, and supports fixed and bearing in your lower base, essentially characterized be provided in said top platform means forward and government the general structure on the soil, consisting of a pedal device whose on determining the release of supports fixed front, leaving them elevated position inoperative benefit of props rolling front, and device handwheel solidarity and turning on a free vertical axis with respect to the structure and connected with inferiorly horizontal shaft front bearing referred. (Machine-translation by Google Translate, not legally binding)