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Priority to JP48072830ApriorityCriticalpatent/JPS5129978B2/ja
Priority to DE19742429570prioritypatent/DE2429570C3/de
Publication of JPS5021932ApublicationCriticalpatent/JPS5021932A/ja
Publication of JPS5129978B2publicationCriticalpatent/JPS5129978B2/ja
