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Individual
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Individual
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Priority to ES0231940ApriorityCriticalpatent/ES231940A1/en
Publication of ES231940A1publicationCriticalpatent/ES231940A1/en
Improvements in the construction of suitable tractors for agricultural operations characterized by including a means of traction to all wheels, steering means to all wheels, hollow longitudinal supports that serve as means of suspension for four wheels of equal size and containing propulsive elements of wheel in its oil-tight interiors, said longitudinal supports being essentially pivotally mounted centrally on the tractor. (Machine-translation by Google Translate, not legally binding)
ES0231940A1956-11-151956-11-15Improvements in the construction of tractors (Machine-translation by Google Translate, not legally binding)
ExpiredES231940A1
(en)