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.)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Mining CofiledCriticalNippon Mining Co
Priority to JP3150885ApriorityCriticalpatent/JPS61193743A/ja
Publication of JPS61193743ApublicationCriticalpatent/JPS61193743A/ja
Publication of JPH0217261B2publicationCriticalpatent/JPH0217261B2/ja