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Priority to ES0057129UpriorityCriticalpatent/ES57129Y/en
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Publication of ES57129YpublicationCriticalpatent/ES57129Y/en
A folder, characterized essentially by being constituted by a plurality of collateral tubes, in a plane joined by the contact generatrices by glue, giving rise to a tubular plate, on which there is a laminar coating of any material stuck in the lines of tangency in each tube, limiting the assembly by both ends, by means of suitable finishing. (Machine-translation by Google Translate, not legally binding)
A procedure for the manufacture of flexible paper pipes, especially tubes for installations (Machine-translation by Google Translate, not legally binding)