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 and Smelting Co Ltd
Mitsui Toatsu Chemicals Inc
Mitsui Mining Co Ltd
Original Assignee
Mitsui Mining and Smelting Co Ltd
Mitsui Toatsu Chemicals Inc
Mitsui 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 Mitsui Mining and Smelting Co Ltd, Mitsui Toatsu Chemicals Inc, Mitsui Mining Co LtdfiledCriticalMitsui Mining and Smelting Co Ltd
Priority to JP59209347ApriorityCriticalpatent/JPS6186418A/ja
Publication of JPS6186418ApublicationCriticalpatent/JPS6186418A/ja
Publication of JPH0234885B2publicationCriticalpatent/JPH0234885B2/ja