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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES0032412UpriorityCriticalpatent/ES32412Y/en
Publication of ES32412UpublicationCriticalpatent/ES32412U/en
Application grantedgrantedCritical
Publication of ES32412YpublicationCriticalpatent/ES32412Y/en
For a "new screw" characterized in that in the geometric center of its head, there is a cylindrical hole a few millimeters deep, into which a tang is inserted in the same way, which exists at the tip of the mouth of a screwdriver. (Machine-translation by Google Translate, not legally binding)