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Priority to ES1983271482UpriorityCriticalpatent/ES271482Y/en
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Publication of ES271482YpublicationCriticalpatent/ES271482Y/en
An improved volumetric displacement device, essentially characterized in that it comprises a part that has a carved signal and acts as a central lid of common effect for the two pistons that the device shares, sliding through the corresponding relief two bearings crossed by two axes in the that rotate freely and that penetrate under pressure into two cylindrical pieces, responsible for generating the movement, acting as a simple reference support and the other in addition to generating the movement presents an axis in which the pump or similar is located. (Machine-translation by Google Translate, not legally binding)