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Individual
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Individual
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Priority to ES1972184637UpriorityCriticalpatent/ES184637Y/en
Publication of ES184637UpublicationCriticalpatent/ES184637U/en
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Publication of ES184637YpublicationCriticalpatent/ES184637Y/en
Improved plow, characterized in that at an anterior point of the arm to the articulation with the frame of the plow in the direction of the advance, said arm, hingedly mounted to a fork secured to a rising spindle, which passes through a bushing and joins by thread to an upper nut, being mounted so that it supports between the upper nut and the described bushing, an antagonistic spring, the mentioned bushing having two diametrically opposed points and projections, horizontal lugs, which constitute the pivot axis of the bushing, to be lodged inside some cavities practiced in the frame of the plow, disappearing any type of friction, when swinging the arm of the plow. (Machine-translation by Google Translate, not legally binding)