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Individual
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Individual
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Priority to ES105322UpriorityCriticalpatent/ES105322U/en
Publication of ES105322UpublicationCriticalpatent/ES105322U/en
Device for opening envelopes characterized by being constituted by a thread located on the inside of the envelope next to one of its sides and immediately to the internal fold of one of the only pas whose thread has one end properly attached to the envelope while the other end will protrude from it by a sufficient length so that it can be grasped with the fingers so that once the envelope is closed by pulling on said end of the thread this will tear the fold and open the envelope. (Machine-translation by Google Translate, not legally binding)
ES105322U1964-04-071964-04-07Device for opening envelopes (Machine-translation by Google Translate, not legally binding)
PendingES105322U
(en)