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Individual
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Priority to ES120535UpriorityCriticalpatent/ES120535Y/en
Publication of ES120535UpublicationCriticalpatent/ES120535U/en
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Publication of ES120535YpublicationCriticalpatent/ES120535Y/en
Tubing joint by plug characterized in that it consists essentially of an iron bushing or other materials of similar mechanical characteristics coated inside by plastic rubber or other elastic material; whose interior is characterized in that the lining is provided with pivots or spikes in a circular direction in its middle that facilitate the correct separation of the tubes in the expansion work and a grooved or grooved projection at each end that allow a good work of tightness. (Machine-translation by Google Translate, not legally binding)
ES120535U1966-03-241966-03-24
JOINT-UNION OF PIPES BY PLUG.
ExpiredES120535Y
(en)
Improvements introduced in the devices to obtain leaks in a hermetic joint between two sections of piping. (Machine-translation by Google Translate, not legally binding)
Improvements introduced in the manufacture of flexible connection parts to make joints between extreme pipes. (Machine-translation by Google Translate, not legally binding)