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Priority to ES1969150407UpriorityCriticalpatent/ES150407Y/en
Publication of ES150407UpublicationCriticalpatent/ES150407U/en
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Publication of ES150407YpublicationCriticalpatent/ES150407Y/en
Improved folder-file, characterized in that it consists essentially in the improvement of the device for opening and closing the same by means of two strapping strips respectively arranged collaterally and transversely on one end of the sides of a piano hinge, so that one, which is on a box or vacuum, involves a tooth in solidarity so that pressing this element with your finger, sinks this plate. In that box and is unhooked from a few openings that the transverse plate has and when closing the folder, joining the hinge by the spine, it automatically engages again in the tooth of the other, (Machine-translation by Google Translate, not legally binding)