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Priority to ES89358UpriorityCriticalpatent/ES89358Y/en
Publication of ES89358UpublicationCriticalpatent/ES89358U/en
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Publication of ES89358YpublicationCriticalpatent/ES89358Y/en
Pipe coupling sleeve for pipes, characterized essentially by consisting of a threaded sleeve internally threaded, except in a few strips for entry of the pipe to be coupled and whose sleeve has windows made from said strips, sectioning the internal thread so that it has angular teeth by means of which the threading and coupling of the tube at the corresponding end of the sleeve is effected at the same time. (Machine-translation by Google Translate, not legally binding)
ES89358U1961-10-141961-10-14
Tapping sleeve for pipe connection
ExpiredES89358Y
(en)