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Application filed by Bellani Pai CristalfiledCriticalBellani Pai Cristal
Priority to IT2175280UpriorityCriticalpatent/IT8021752V0/it
Publication of IT8021752V0publicationCriticalpatent/IT8021752V0/it
Priority to AT81830069Tprioritypatent/ATE6700T1/de
Priority to DE8181830069Tprioritypatent/DE3162604D1/de
Priority to EP19810830069prioritypatent/EP0039664B1/en