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Priority to ES0063394UpriorityCriticalpatent/ES63394Y/en
Publication of ES63394UpublicationCriticalpatent/ES63394U/en
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Publication of ES63394YpublicationCriticalpatent/ES63394Y/en
Set of children's constructions, consisting of elongated prismatic pieces, characterized by having two diametrically opposed notches, near each end, and another pair of notches located at an intermediate point of its length, so that the assembly is not only insured by the ends of the piece, but by another point of its length. (Machine-translation by Google Translate, not legally binding)
ES0063394U1957-12-141957-12-14
Children's construction game
ExpiredES63394Y
(en)