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Priority to ES1971175812UpriorityCriticalpatent/ES175812Y/en
Publication of ES175812UpublicationCriticalpatent/ES175812U/en
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Publication of ES175812YpublicationCriticalpatent/ES175812Y/en
Improved extractor characterized in that the fixed part forms a pointed element on which lever that has a sprocket carved, meshing with a rack arranged at one end of the wedge. (Machine-translation by Google Translate, not legally binding)