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Priority to ES0084795UpriorityCriticalpatent/ES84795Y/en
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Publication of ES84795YpublicationCriticalpatent/ES84795Y/en
A hammer mass essentially characterized in that its striking head is composed of two opposite bodies of different hardness that are coupled together, thanks to one of them having a projecting cylindrical element threaded into the corresponding cavity made in the other. (Machine-translation by Google Translate, not legally binding)