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Application filed by Oestreicher Friedrich Ing, Waldingbrett GertrudefiledCriticalOestreicher Friedrich Ing
Priority to AT47499ApriorityCriticalpatent/AT408411B/de
Publication of ATA47499ApublicationCriticalpatent/ATA47499A/de
Application grantedgrantedCritical
Publication of AT408411BpublicationCriticalpatent/AT408411B/de