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.)
Mesco Inc
Mitsui Kinzoku Co Ltd
Original Assignee
Mesco Inc
Mitsui Mining and Smelting 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 Mesco Inc, Mitsui Mining and Smelting Co LtdfiledCriticalMesco Inc
Priority to JP376380UpriorityCriticalpatent/JPS6032931Y2/ja
Publication of JPS5598471UpublicationCriticalpatent/JPS5598471U/ja
Application grantedgrantedCritical
Publication of JPS6032931Y2publicationCriticalpatent/JPS6032931Y2/ja