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Priority to ES0251522ApriorityCriticalpatent/ES251522A3/en
Publication of ES251522A3publicationCriticalpatent/ES251522A3/en
Improvements in the valve actuation for fluids consisting of the combination of a valve body of the conventional type equipped with the corresponding shutter with a servo-tapped by a fluid outside the circulating one that has a membrane that drives the stem of the plug on which they act on a fluid face and the other an antagonistic spring. (Machine-translation by Google Translate, not legally binding)
ES0251522A1959-07-221959-07-22Improvements in the operation of fluid valves (Machine-translation by Google Translate, not legally binding)
ExpiredES251522A3
(en)