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Priority to ES1968135556UpriorityCriticalpatent/ES135556Y/en
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Publication of ES135556YpublicationCriticalpatent/ES135556Y/en
Tubular and foldable metal hand ladder that is essentially characterized by being integrated by a tubular metallic frame in inverted "U" on which, and by means of die bites practiced in its upper area and pivoting in two cylindrical pins receives complementary legs, equal each other and joined in two different points by two reinforcing crosspieces of which, the upper one, serves for articulation and fit of the highest step. (Machine-translation by Google Translate, not legally binding)
ES1968135556U1968-01-201968-01-20
METALLIC-TUBULAR AND FOLDING LADDER.
ExpiredES135556Y
(en)