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 JP47014425ApriorityCriticalpatent/JPS528047B2/ja
Priority to DE2305931Aprioritypatent/DE2305931C3/de
Priority to US331019Aprioritypatent/US3899773A/en
Publication of JPS4884528ApublicationCriticalpatent/JPS4884528A/ja
Publication of JPS528047B2publicationCriticalpatent/JPS528047B2/ja
