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.)
Dowa Holdings Co Ltd
Original Assignee
Dowa 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 Dowa Mining Co LtdfiledCriticalDowa Mining Co Ltd
Priority to JP17220481UpriorityCriticalpatent/JPS5876699U/ja
Publication of JPS5876699UpublicationCriticalpatent/JPS5876699U/ja
Application grantedgrantedCritical
Publication of JPS6139039Y2publicationCriticalpatent/JPS6139039Y2/ja