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Exclusivas Olalsa S L
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Exclusivas Olalsa S L
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Priority to ES1972178585UpriorityCriticalpatent/ES178585Y/en
Publication of ES178585UpublicationCriticalpatent/ES178585U/en
Application grantedgrantedCritical
Publication of ES178585YpublicationCriticalpatent/ES178585Y/en
"Hydraulic plug", essentially characterized by a hollow cylindrical bushing, whose interior and approximately in its middle zone is disposed a perimetric projection of inclined or frustoconical slope, separating the bushing into two upper and lower zones, of which the upper one has two cavities of different diameter, and the lower one also hollow incorporates at different heights some holes for the passage of steel balls. (Machine-translation by Google Translate, not legally binding)