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Application filed by Gtf SrlfiledCriticalGtf Srl
Priority to IT8920536ApriorityCriticalpatent/IT1229751B/it
Publication of IT8920536A0publicationCriticalpatent/IT8920536A0/it
Priority to DE89109470Tprioritypatent/DE68911590D1/de
Priority to EP19890109470prioritypatent/EP0344620B1/en
Priority to AT89109470Tprioritypatent/ATE98845T1/de
Application grantedgrantedCritical
Publication of IT1229751BpublicationCriticalpatent/IT1229751B/it