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Priority claimed from IT8767655Aexternal-prioritypatent/IT1211244B/it
Priority claimed from IT5298588Uexternal-prioritypatent/IT214601Z2/it
Application filed by Hastasider Metal SrlfiledCriticalHastasider Metal Srl
Priority claimed from EP88111967Aexternal-prioritypatent/EP0300510B1/de
Application grantedgrantedCritical
Publication of ATE71998T1publicationCriticalpatent/ATE71998T1/de