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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Mineral Co Ltd
Original Assignee
Kawatetsu Mining Co Ltd
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 Kawatetsu Mining Co LtdfiledCriticalKawatetsu Mining Co Ltd
Priority to JP14223177ApriorityCriticalpatent/JPS5474812A/en
Publication of JPS5474812ApublicationCriticalpatent/JPS5474812A/en
Publication of JPS6112861B2publicationCriticalpatent/JPS6112861B2/ja