Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
Original Assignee
Individual
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Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES1975216314UpriorityCriticalpatent/ES216314Y/en
Publication of ES216314UpublicationCriticalpatent/ES216314U/en
Application grantedgrantedCritical
Publication of ES216314YpublicationCriticalpatent/ES216314Y/en
Perforating, Stamping-Out Or Severing By Means Other Than Cutting
(AREA)
Abstract
Fastening device for drilled sheets, characterized by being composed of a series of equal rings split in half and articulated so that they can be opened all welded by their outer contour on a pair of parallel straps, whose cross section affects a circular curvature in order to provide a better seat to the aforementioned rings, said strips being incorporated in the inside of the spine of a notebook, folder or file, whose covers protect the drilled sheets, one of the described rings being provided with a snap closure, depending on the opening of this ring the leaves are incorporated in the specified device. (Machine-translation by Google Translate, not legally binding)