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 JP24631784ApriorityCriticalpatent/JPS61127843A/ja
Priority to US06/796,839prioritypatent/US4666666A/en
Priority to GB08528183Aprioritypatent/GB2167769B/en
Priority to DE19853541223prioritypatent/DE3541223A1/de
Publication of JPS61127843ApublicationCriticalpatent/JPS61127843A/ja
Publication of JPS6220268B2publicationCriticalpatent/JPS6220268B2/ja