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Priority claimed from AT481474Aexternal-prioritypatent/AT334348B/de
Application filed by Corvi Camillo SpafiledCriticalCorvi Camillo Spa
Priority to AT318476ApriorityCriticalpatent/AT344148B/de
Publication of ATA318476ApublicationCriticalpatent/ATA318476A/de
Application grantedgrantedCritical
Publication of AT344148BpublicationCriticalpatent/AT344148B/de