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Individual
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Individual
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Priority to ES0307331ApriorityCriticalpatent/ES307331A1/en
Publication of ES307331A1publicationCriticalpatent/ES307331A1/en
Perfections introduced in disc harrows, characterized by having mounted a chassis or front frame and a rear one of variable angle to each other, whose frames are mounted with free movement of rotation, a series of discs forming independent sets, each group can have three or more discs mounted so that the last disc always remains outside the frame or chassis of the harrow. (Machine-translation by Google Translate, not legally binding)
ES0307331A1964-12-191964-12-19Improvements introduced in the grades of discs. (Machine-translation by Google Translate, not legally binding)
ExpiredES307331A1
(en)