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.)
SUMIKIN KIKOU KK
Nippon Steel Corp
Benkan Kikoh Corp
Original Assignee
SUMIKIN KIKOU KK
Sumitomo Metal Industries Ltd
Sumikin Kikoh 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 SUMIKIN KIKOU KK, Sumitomo Metal Industries Ltd, Sumikin Kikoh Co LtdfiledCriticalSUMIKIN KIKOU KK
Priority to JP13169875ApriorityCriticalpatent/JPS5254663A/en
Publication of JPS5254663ApublicationCriticalpatent/JPS5254663A/en