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Priority to ES0001781UpriorityCriticalpatent/ES1781Y/en
Publication of ES1781UpublicationCriticalpatent/ES1781U/en
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Publication of ES1781YpublicationCriticalpatent/ES1781Y/en
An improved trillo in which the blades of the disks and the complementary staples have their sharpness in the saw, and both the shaft that holds the disks and the other blades, are mounted on a semicircular grid. (Machine-translation by Google Translate, not legally binding)
Plates to preserve the writing to machine during the erase provided with receptacles for residues. (Machine-translation by Google Translate, not legally binding)