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.)
DOUWA TETSUPUN KOUGIYOU KK
DOWA TETSUPUN KOUGIYOU KK
Original Assignee
DOUWA TETSUPUN KOUGIYOU KK
DOWA TETSUPUN KOUGIYOU 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 DOUWA TETSUPUN KOUGIYOU KK, DOWA TETSUPUN KOUGIYOU KKfiledCriticalDOUWA TETSUPUN KOUGIYOU KK
Priority to JP4390175ApriorityCriticalpatent/JPS51119331A/en
Publication of JPS51119331ApublicationCriticalpatent/JPS51119331A/en