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Priority to DE19742406643priorityCriticalpatent/DE2406643C2/de
Priority claimed from DE19742406643external-prioritypatent/DE2406643C2/de
Priority to JP1775375Aprioritypatent/JPS552007B2/ja
Publication of DE2406643A1publicationCriticalpatent/DE2406643A1/de
Publication of DE2406643B1publicationCriticalpatent/DE2406643B1/de
Application grantedgrantedCritical
Publication of DE2406643C2publicationCriticalpatent/DE2406643C2/de