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.)
Nippon Kokan Koji KK
TOKYO GIKEN KOGYO KK
Original Assignee
Nippon Kokan Koji KK
TOKYO GIKEN KOGYO 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 Nippon Kokan Koji KK, TOKYO GIKEN KOGYO KKfiledCriticalNippon Kokan Koji KK
Priority to JP1696782ApriorityCriticalpatent/JPS58135204A/ja
Publication of JPS58135204ApublicationCriticalpatent/JPS58135204A/ja
Publication of JPS6128044B2publicationCriticalpatent/JPS6128044B2/ja