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Priority to ES457121ApriorityCriticalpatent/ES457121A1/en
Publication of ES457121A1publicationCriticalpatent/ES457121A1/en
Improvements in the mechanisms of the multiple plows, characterized by the arrangement of a horizontal frame of welded normal profiles, whose front and rear sides carry the pairs of vertical flanges each one of which corresponds to a subsoiler and which they carry on their edges the anchoring holes of one end of the safety and overrun springs are upper, while at the lower edge with respect to the frame they bear the points of articulation of the angular part of the subsoiler arm. The grid disposed of the knife, has a flat attack edge that facilitates the swelling of the earth. (Machine-translation by Google Translate, not legally binding)
ES457121A1977-03-231977-03-23Improvements in the multiple plow mechanisms. (Machine-translation by Google Translate, not legally binding)
ExpiredES457121A1
(en)