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Application filed by Paul ZieglerfiledCriticalPaul Ziegler
Priority to IT22062/81ApriorityCriticalpatent/IT1194801B/it
Publication of IT8122062A0publicationCriticalpatent/IT8122062A0/it
Publication of IT8122062A1publicationCriticalpatent/IT8122062A1/it
Application grantedgrantedCritical
Publication of IT1194801BpublicationCriticalpatent/IT1194801B/it