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Priority claimed from IT8600778Aexternal-prioritypatent/IT1162216B/it
Priority claimed from IT4784979Aexternal-prioritypatent/IT1188817B/it
Application filed by Giovanni Battista RiccifiledCriticalGiovanni Battista Ricci
Priority claimed from EP79830048Aexternal-prioritypatent/EP0013543B1/de
Application grantedgrantedCritical
Publication of ATE4235T1publicationCriticalpatent/ATE4235T1/de