Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Priority to JP1535872ApriorityCriticalpatent/JPS5420802B2/ja
Priority to DE19732306821prioritypatent/DE2306821C3/de
Publication of JPS4885004ApublicationCriticalpatent/JPS4885004A/ja
Publication of JPS5420802B2publicationCriticalpatent/JPS5420802B2/ja
