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IMPALA S L
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IMPALA S L
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Priority to ES93873UpriorityCriticalpatent/ES93873Y/en
Publication of ES93873UpublicationCriticalpatent/ES93873U/en
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Publication of ES93873YpublicationCriticalpatent/ES93873Y/en
An improved keyring, essentially characterized by being a piece of fine rod, perfectly inverted trapezoidal configuration, which has an interrupted area provided in the upper third of one of its sides, in which a tubular element of greater diameter than the section of the key chain itself, this tubular section having inside it a helical spring that is supported by its lower part on the terminal plane of the key ring and on the upper part is placed against an internal transverse plane of the closure itself, which at its end upper presents a frustoconical widening, carrying in this point a void of vertical disposition, which receives by diametrical difference to the upper, open end of the keyring, causing the referred spring the tension necessary to establish the automatic closing of the assembly and the lower displacement of the closure press on the pier and release the entrance, allowing the ation or extraction of keys and other effects. (Machine-translation by Google Translate, not legally binding)