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Priority claimed from IT8622592Aexternal-prioritypatent/IT1214575B/it
Priority claimed from IT22344/87Aexternal-prioritypatent/IT1222951B/it
Application filed by Riva Calzoni SpafiledCriticalRiva Calzoni Spa
Priority claimed from EP19870202354external-prioritypatent/EP0270181B1/de
Application grantedgrantedCritical
Publication of ATE76166T1publicationCriticalpatent/ATE76166T1/de