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Publication date
Priority claimed from FR7801632Aexternal-prioritypatent/FR2415099A1/fr
Application filed by Ile De FrancefiledCriticalIle De France
Priority to AT295283ApriorityCriticalpatent/AT377978B/de
Publication of ATA295283ApublicationCriticalpatent/ATA295283A/de
Application grantedgrantedCritical
Publication of AT377978BpublicationCriticalpatent/AT377978B/de