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Priority to IT12522ApriorityCriticalpatent/IT1242225B/en
Publication of IT9012522A0publicationCriticalpatent/IT9012522A0/en
Publication of IT9012522A1publicationCriticalpatent/IT9012522A1/en
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Publication of IT1242225BpublicationCriticalpatent/IT1242225B/en
IT12522A1990-10-051990-10-05Boring rod for foundation piles and consolidation of soil equipped with a central transport line for the produced wastes
IT1242225B
(en)