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Individual
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Individual
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Priority to ES150677UpriorityCriticalpatent/ES150677U/en
Publication of ES150677UpublicationCriticalpatent/ES150677U/en
Device for opening envelopes, which is characterized by being made of a thread of sufficient strength that is adhered in part or its entire length by an appropriate glue on the outside and in line with the fold line of the envelope flap , whose thread extends out of the envelope projecting from this a section of small enough length to allow it to be picked up with the fingers of the hand to facilitate the tearing of the envelope by said fold line. (Machine-translation by Google Translate, not legally binding)
ES150677U1969-07-221969-07-22Device for opening envelopes (Machine-translation by Google Translate, not legally binding)
PendingES150677U
(en)