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Priority to ES0311939ApriorityCriticalpatent/ES311939A1/en
Publication of ES311939A1publicationCriticalpatent/ES311939A1/en
Improvements in hydraulic pumps, characterized in that they have been provided with a unit consisting of a working head which is threadedly coupled with an oil tank; The valvular organs and the points of articulation of the control lever and the billet of the oil return valve are located in this working head. (Machine-translation by Google Translate, not legally binding)
ES0311939A1965-04-171965-04-17Improvements in hydraulic pumps. (Machine-translation by Google Translate, not legally binding)
ExpiredES311939A1
(en)
Improvements in hydraulic control devices with driving slider and pressure increasing valve. (Machine-translation by Google Translate, not legally binding)
Hydraulic device for actuating mechanisms which include at least one plunger with combined valve of fluid deviation (Machine-translation by Google Translate, not legally binding)