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JUAN SANCHO JULIO DE
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JUAN SANCHO JULIO DE
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Priority to ES1977230569UpriorityCriticalpatent/ES230569Y/en
Publication of ES230569UpublicationCriticalpatent/ES230569U/en
Application grantedgrantedCritical
Publication of ES230569YpublicationCriticalpatent/ES230569Y/en
Improved expansion anchoring, which being of those that incorporate a screw in which plays a nut that occupies the inner end thereof and that acts through its frustoconical front on an expansion bushing, essentially characterized because said bushing is provided with various cuts inclined that favor their expansion in a uniform way. (Machine-translation by Google Translate, not legally binding)