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Priority to ES1970163143UpriorityCriticalpatent/ES163143Y/en
Publication of ES163143UpublicationCriticalpatent/ES163143U/en
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Publication of ES163143YpublicationCriticalpatent/ES163143Y/en
Improved bag, characterized in that it is constituted by a tube that is folded and embedded on itself, forming a double wall, the end of the refractory sector being joined to the end of the tube by a conventional means so that the tube at said end is closed, its opposite end open. (Machine-translation by Google Translate, not legally binding)