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Priority to ES1971174479UpriorityCriticalpatent/ES174479Y/en
Publication of ES174479UpublicationCriticalpatent/ES174479U/en
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Publication of ES174479YpublicationCriticalpatent/ES174479Y/en
Toy ladder, characterized by consisting of an indefinite number of parts or elements identical to each other, each of which forms a flat plate, arranged to constitute a step of the ladder, provided at an end of a rod projecting orthogonally from its lower face and has an axial cavity, opened by the upper part and an extreme lower prolongation, of reduced section, capable of adjusting in the referred opening; all in such a way that it is possible to attach an indefinite number of elements, one after the other, by simple plug of the lower extremity, of reduced section, of each of them, in the cavity provided in the element that occupies the immediately previous position, there being provided in these elements means for determining the locking in rotation of each element with respect to the previous one, immobilizing it in a position rotated at a certain angle with respect thereto. (Machine-translation by Google Translate, not legally binding)
ES1971174479U1971-11-111971-11-11
TOY LADDER.
ExpiredES174479Y
(en)
System for manufacture of texas and vaults with armor or without it, of centrifuged concrete (Machine-translation by Google Translate, not legally binding)