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Priority claimed from IT8712502Aexternal-prioritypatent/IT1208307B/it
Priority claimed from IT8812446Aexternal-prioritypatent/IT8812446A0/it
Application filed by Grafoplast SpafiledCriticalGrafoplast Spa
Priority claimed from EP88109068Aexternal-prioritypatent/EP0295542B1/de
Application grantedgrantedCritical
Publication of ATE86781T1publicationCriticalpatent/ATE86781T1/de