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Priority to ES120493UpriorityCriticalpatent/ES120493Y/en
Publication of ES120493UpublicationCriticalpatent/ES120493U/en
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Publication of ES120493YpublicationCriticalpatent/ES120493Y/en
Improved expansion device for elastic hangers characterized by comprising two tubes mounted telescopically one of which penetrates with sliding fit inside the other and permanently in a sufficient minimum length so that the displacement is prevented. Angular between them inside of which a compression spring is housed in a tube that encloses a helical spring and presses plates that close the tubes at their ends in order to permanently and elastically separate the free ends, preventing means to limit the minimum penetration sufficient to avoid the angular displacement between them. . (Machine-translation by Google Translate, not legally binding)
ES120493U1966-03-231966-03-23
PERFECTED EXPANSION DEVICE FOR ELASTIC HANGERS.
ExpiredES120493Y
(en)