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Priority claimed from DE3149843Aexternal-prioritypatent/DE3149843C2/de
Application filed by Plastik Thomalla KgfiledCriticalPlastik Thomalla Kg
Publication of IT8224246A0publicationCriticalpatent/IT8224246A0/it
Publication of IT8224246A1publicationCriticalpatent/IT8224246A1/it
Application grantedgrantedCritical
Publication of IT1153026BpublicationCriticalpatent/IT1153026B/it