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Priority claimed from DE19762617865external-prioritypatent/DE2617865A1/de
Application filed by Weichel ErnstfiledCriticalWeichel Ernst
Priority to AT89580ApriorityCriticalpatent/AT368827B/de
Publication of ATA89580ApublicationCriticalpatent/ATA89580A/de
Application grantedgrantedCritical
Publication of AT368827BpublicationCriticalpatent/AT368827B/de