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Priority to ES1977230827UpriorityCriticalpatent/ES230827Y/en
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Publication of ES230827YpublicationCriticalpatent/ES230827Y/en
Pernium perfected, which essentially is characterized in that its constituent parts are formed from metal ferrules that, by the appropriate procedure are embedded in bodies of a plastic nature in a general and preferably cylindrical, coaxially counting one of such bodies with the appropriate blind hole where the spike is attached to the other body; it being provided that said ferrules present longitudinally a flat surface on which, in alignment, at least two prolonged windows have been made in recesses oriented in the same direction, all this forming the recesses that affect the cylindrical bodies. (Machine-translation by Google Translate, not legally binding)
CEMENTED CARBON OR SINTERIZED HARD METAL, PROCESS FOR MANUFACTURING A MOLYBDENUM-TUNGSTEN CARBONITRET AND PROCESS FOR MANUFACTURING THE REFERRED CEMENTED CARBON