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Application filed by Dienstl Franz, Leuprecht HelmutfiledCriticalDienstl Franz
Priority to AT61181ApriorityCriticalpatent/AT377430B/en
Publication of ATA61181ApublicationCriticalpatent/ATA61181A/en
Application grantedgrantedCritical
Publication of AT377430BpublicationCriticalpatent/AT377430B/en