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Individual
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Individual
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Priority to ES127066UpriorityCriticalpatent/ES127066Y/en
Publication of ES127066UpublicationCriticalpatent/ES127066U/en
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Publication of ES127066YpublicationCriticalpatent/ES127066Y/en
Anchoring screw, characterized in that from its head and resting on it its threaded body has inserted a washer and a tubular elastic core, which at its other end rests on a nut, which in the part corresponding to that shell is shaped of glass and it is embedded in it; the tubular casing, towards its longitudinal half, presents a section of rupture, of weakened resistance, as well as longitudinal incisions, which determine fins when the pressed casing is opened between the head of the screw and the nut of its other end. (Machine-translation by Google Translate, not legally binding)