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Priority claimed from DE2736731Aexternal-prioritypatent/DE2736731C2/de
Priority claimed from DE19772742141external-prioritypatent/DE2742141A1/de
Priority claimed from DE19782808146external-prioritypatent/DE2808146A1/de
Application filed by Wiegand JoseffiledCriticalWiegand Josef
Publication of ATA588678ApublicationCriticalpatent/ATA588678A/de
Application grantedgrantedCritical
Publication of AT370369BpublicationCriticalpatent/AT370369B/de