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.)
SHIERU SEKIYU KK
Shell Sekiyu KK
Showa Shell Sekiyu KK
Original Assignee
SHIERU SEKIYU KK
Shell Sekiyu KK
Showa Shell Sekiyu 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 SHIERU SEKIYU KK, Shell Sekiyu KK, Showa Shell Sekiyu KKfiledCriticalSHIERU SEKIYU KK
Priority to JP4178075ApriorityCriticalpatent/JPS51117306A/en
Publication of JPS51117306ApublicationCriticalpatent/JPS51117306A/en