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Priority to ES1977230819UpriorityCriticalpatent/ES230819Y/en
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Publication of ES230819YpublicationCriticalpatent/ES230819Y/en
Pump, characterized essentially by the fact that it comprises a chamber in which it tightly adjusts a moving membrane operated through an appropriate transmission, at the bottom of which chamber two orifices, one of inlet and one of fluid outlet, open in communication with respective obturable steps by respective valves formed by elastic tongues acting in opposite directions, whose steps are connected in turn with inlet and outlet tubes of the fluid. (Machine-translation by Google Translate, not legally binding)