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.)
Mitsui Mining Co Ltd
Mitsui Zosen KK
Original Assignee
Mitsui Mining Co Ltd
Mitsui Zosen KK
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 Mitsui Mining Co Ltd, Mitsui Zosen KKfiledCriticalMitsui Mining Co Ltd
Priority to JP14524375ApriorityCriticalpatent/JPS5268207A/ja
Publication of JPS5268207ApublicationCriticalpatent/JPS5268207A/ja
Publication of JPS5757073B2publicationCriticalpatent/JPS5757073B2/ja