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Priority claimed from IT8709531Aexternal-prioritypatent/IT1229592B/it
Priority claimed from IT1158988Uexternal-prioritypatent/IT214430Z2/it
Application filed by Maria Rosa CalcinaifiledCriticalMaria Rosa Calcinai
Priority claimed from EP88830465Aexternal-prioritypatent/EP0315603B1/de
Application grantedgrantedCritical
Publication of ATE99107T1publicationCriticalpatent/ATE99107T1/de