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Priority to DE19742457067priorityCriticalpatent/DE2457067C2/de
Priority claimed from DE19742457067external-prioritypatent/DE2457067C2/de
Publication of DE2457067B1publicationCriticalpatent/DE2457067B1/de
Publication of DE2457067A1publicationCriticalpatent/DE2457067A1/de
Priority to FR7537024Aprioritypatent/FR2293732A1/fr
Application grantedgrantedCritical
Publication of DE2457067C2publicationCriticalpatent/DE2457067C2/de