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Priority claimed from CH578079Aexternal-prioritypatent/CH634893A5/it
Priority claimed from CH394580Aexternal-prioritypatent/CH640597A5/it
Application filed by Giovanni BoschettifiledCriticalGiovanni Boschetti
Priority claimed from EP80810205Aexternal-prioritypatent/EP0022083B1/de
Application grantedgrantedCritical
Publication of ATE7941T1publicationCriticalpatent/ATE7941T1/de