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Individual
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Individual
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Priority to ES0065580UpriorityCriticalpatent/ES65580U/en
Publication of ES65580UpublicationCriticalpatent/ES65580U/en
Binder for changeable sheets, characterized in that it is constituted by two pieces, of the same length as the edge of the sheets to be bound, one of whose pieces is a straight strip of plastic material that presents, on one side, a reinforced edge and at the other rings, arranged in planes perpendicular to the strip and that do not close on it. (Machine-translation by Google Translate, not legally binding)
ES0065580U1958-04-191958-04-19Bookbinder for changeable sheets (Machine-translation by Google Translate, not legally binding)
PendingES65580U
(en)