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Individual
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Priority to ES90724UpriorityCriticalpatent/ES90724Y/en
Publication of ES90724UpublicationCriticalpatent/ES90724U/en
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Publication of ES90724YpublicationCriticalpatent/ES90724Y/en
Hermetic device for drain valves, characterized by being composed of a piece of any elastic material that takes the form of a flange composed of a washer whose orifice emerges a cylindrical neck, the inside diameter of said neck having to correspond to the outside of the tube lowering of the valve, so as to be able to cover said tube, slide along it and intercalate between it and the walls of the container in which the valve is mounted, introducing itself until the horizontal flap stops, to be fastened afterwards with the corresponding pressure nut. (Machine-translation by Google Translate, not legally binding)
ES90724U1962-01-021962-01-02
Hermetic device for drain valves
ExpiredES90724Y
(en)