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.)
Sumitomo Metal Mining Co Ltd
Nihon Kogyo KK
Mitsubishi Metal Corp
Mitsui Mining and Smelting Co Ltd
Toho Aen KK
Original Assignee
Sumitomo Metal Mining Co Ltd
Nihon Kogyo KK
Mitsubishi Metal Corp
Mitsui Mining and Smelting Co Ltd
Toho Aen 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 Sumitomo Metal Mining Co Ltd, Nihon Kogyo KK, Mitsubishi Metal Corp, Mitsui Mining and Smelting Co Ltd, Toho Aen KKfiledCriticalSumitomo Metal Mining Co Ltd
Priority to JP2460283ApriorityCriticalpatent/JPS59153847A/ja
Publication of JPS59153847ApublicationCriticalpatent/JPS59153847A/ja
Publication of JPS6128730B2publicationCriticalpatent/JPS6128730B2/ja