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Individual
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Individual
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Priority to ES200002713UpriorityCriticalpatent/ES1047653Y/en
Publication of ES1047653UpublicationCriticalpatent/ES1047653U/en
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Publication of ES1047653YpublicationCriticalpatent/ES1047653Y/en
Lubricated screw, of the type composed of a head and a threaded pin, characterized in that it has, from the free base of the head, a blind axial bore, which reaches the vicinity of the free end of the threaded pin, whose drill bore radial holes of small diameter that open on the lateral surface of the pin, in whose axial bore is capable of introducing a bolt acting as a plunger driver. (Machine-translation by Google Translate, not legally binding)