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Individual
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Priority to ES0039980UpriorityCriticalpatent/ES39980Y/en
Publication of ES39980UpublicationCriticalpatent/ES39980U/en
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Publication of ES39980YpublicationCriticalpatent/ES39980Y/en
Improved stone grindstone that is essentially characterized by being constituted in its central part by an area of natural stone, in one piece, and in the rest to its periphery, by an agglomerate of the type called artificial stone, of uniform constitution in all the piece, which prevents particles of artificial stone from being dislodged from the wheel and mixed with the grains subject to grinding. (Machine-translation by Google Translate, not legally binding)
ES0039980U1954-01-121954-01-12
Stone grinding wheel, perfected
ExpiredES39980Y
(en)
Device for aminating the times of the replacement of the elements submitted to the wear in shock mills. (Machine-translation by Google Translate, not legally binding)
Improvements in the manufacture of abrasive articles for the grinding and polishing of metals (Machine-translation by Google Translate, not legally binding)