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Individual
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Individual
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Priority to ES112855UpriorityCriticalpatent/ES112855Y/en
Publication of ES112855UpublicationCriticalpatent/ES112855U/en
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Publication of ES112855YpublicationCriticalpatent/ES112855Y/en
Improved spinning box characterized essentially by the fact that the side walls are formed by two halves according to metal sheets folded in rectangular "U" overlapped and riveted by their end edges whose walls are joined by their lower edge to the edges of a sheet metallic background previously bent and nailed on the sections of a frame determined by a rectangular frame provided with crossbeams whose box in this area has two reinforcing strips bent in "U" and that overlapping respectively on the sheets that form the walls are overlapping its ends and nailed to the sides of said frame presenting the box a frame threaded on the upper edges and whose sections are fixed by means of corner straps arranged inside and outside with the presence of screws. (Machine-translation by Google Translate, not legally binding)