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.)
Dai Nippon Toryo KK
Original Assignee
Dai Nippon Toryo 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 Dai Nippon Toryo KKfiledCriticalDai Nippon Toryo KK
Priority to JP6811278ApriorityCriticalpatent/JPS5538801A/ja
Priority to GB7835943Aprioritypatent/GB2004560B/en
Priority to US05/940,608prioritypatent/US4219358A/en
Publication of JPS5538801ApublicationCriticalpatent/JPS5538801A/ja
Publication of JPS5535430B2publicationCriticalpatent/JPS5535430B2/ja