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.)
Chiyoda R & D kk
Original Assignee
Chiyoda R & D 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 Chiyoda R & D kkfiledCriticalChiyoda R & D kk
Priority to JP12840575ApriorityCriticalpatent/JPS5252890A/ja
Publication of JPS5252890ApublicationCriticalpatent/JPS5252890A/ja
Publication of JPS5546963B2publicationCriticalpatent/JPS5546963B2/ja