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Priority claimed from DE2205661Aexternal-prioritypatent/DE2205661C3/de
Application filed by Willy AdefiledCriticalWilly Ade
Priority to AT693074ApriorityCriticalpatent/AT336457B/de
Publication of ATA693074ApublicationCriticalpatent/ATA693074A/de
Application grantedgrantedCritical
Publication of AT336457BpublicationCriticalpatent/AT336457B/de