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Individual
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Individual
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Priority to ES0081247UpriorityCriticalpatent/ES81247Y/en
Publication of ES81247UpublicationCriticalpatent/ES81247U/en
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Publication of ES81247YpublicationCriticalpatent/ES81247Y/en
Worm folder for archiving, characterized in that the worm springs have the final loop of one of its ends of greater amplitude, this end being housed and its wide loop in the head of a rivet bracket, which is inserted in the corresponding hole in one of the covers of the folder, through which the worm spring is also passed, while on the opposite side to that of the rivet head, it is housed in the hole and in the tubular body of the rivet, another piece cylindrical-tubular with a flange like a walloon, in such a way that when compressing and pressing both pieces, the cardboard of the lid is included between them, the spring being held inside the head of the rivet and also to the lid, which is the which is pursued. (Machine-translation by Google Translate, not legally binding)