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Individual
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Individual
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Priority to ES460449ApriorityCriticalpatent/ES460449A2/en
Publication of ES460449A2publicationCriticalpatent/ES460449A2/en
Improvements introduced in the object of the main patent no. 412,704 by: sharpening machine, characterized in that the plate that serves as support for the abrasive band, when sharpening a tool, is independent of the support fork of the driven drum and one end has a square crease, provided with a hole, so that said plate can be joined to the assembly by means of the screw that joins said fork to the extensible system of the machine, inserting an elastic washer. (Machine-translation by Google Translate, not legally binding)
ES460449A1977-07-061977-07-06Sharpening machine. (Machine-translation by Google Translate, not legally binding)
ExpiredES460449A2
(en)
Improvements introduced in the hydraulic clutches applied to paper cutting and similar guillotines (Machine-translation by Google Translate, not legally binding)
Improvements in sewing machines related to the retention of threads at the start of sewing and cut them at the end of them (Machine-translation by Google Translate, not legally binding)