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Priority claimed from FR7419304Aexternal-prioritypatent/FR2273841A1/en
Application filed by LabazfiledCriticalLabaz
Priority claimed from AT423677Aexternal-prioritypatent/AT358834B/en
Publication of ATA32877ApublicationCriticalpatent/ATA32877A/en
Application grantedgrantedCritical
Publication of AT352111BpublicationCriticalpatent/AT352111B/en