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Priority to ES1972182745UpriorityCriticalpatent/ES182745Y/en
Publication of ES182745UpublicationCriticalpatent/ES182745U/en
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Publication of ES182745YpublicationCriticalpatent/ES182745Y/en
Metal shutter, of the type comprising tubular stringers linked by articulated parts between each two stringers, characterized essentially by the fact that at the ends of the stringers are plugged retained by annular sausages, fitted at the outer end of a radial flange external, in whose bushes the ends of two links, located between the flange and the edge of the tubular spar, which are hinged at the opposite end to the bushings of the adjacent spars, are threaded. (Machine-translation by Google Translate, not legally binding)