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Individual
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Individual
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Priority to ES0065960UpriorityCriticalpatent/ES65960U/en
Publication of ES65960UpublicationCriticalpatent/ES65960U/en
Improved binding for notebooks and the like, characterized in that starting from a set of leaves which have been practiced on one of their edges a plurality of holes equidistant from each other, they are joined together in a block by means of a rigid element wound in a helix and formed by a metallic core covered by an envelope of plastic material. (Machine-translation by Google Translate, not legally binding)
ES0065960U1958-04-281958-04-28Perfect binding for notebooks and similar (Machine-translation by Google Translate, not legally binding)
PendingES65960U
(en)