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.)
Daido Steel Co Ltd
Suwa Seikosha KK
Original Assignee
Daido Steel Co Ltd
Suwa Seikosha 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 Daido Steel Co Ltd, Suwa Seikosha KKfiledCriticalDaido Steel Co Ltd
Priority to JP4147182ApriorityCriticalpatent/JPS5817821B1/ja
Publication of JPS5817821B1publicationCriticalpatent/JPS5817821B1/ja