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Priority to ES1971169800UpriorityCriticalpatent/ES169800Y/en
Publication of ES169800UpublicationCriticalpatent/ES169800U/en
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Publication of ES169800YpublicationCriticalpatent/ES169800Y/en
Improved lag screw, of which, being externally cylindrical, have a helical fillet on its outer surface and on its upper part means that facilitate its screwed into the wooden table in which it is housed, characterized essentially because of the end that conventionally, is flush with the surface of the wood mass in which it is housed, a tubular appendage is advantageously threaded by its interior in accordance with the conventional thread that already bears the nut, whose appendix is constituted in assembly wick for other parts of wood or another material that must be immovably mounted on the mass of wood in which the nut anchors. (Machine-translation by Google Translate, not legally binding)
Braiding element of rods for supports in general supported to turn and longitudinal displacement. (Machine-translation by Google Translate, not legally binding)
Improvements introduced in the manufacture of expansible tacos for the fixation of objects in constructive parts through screws or threaded pins. (Machine-translation by Google Translate, not legally binding)