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.)
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 三井石油化学工業株式会社filedCritical三井石油化学工業株式会社
Priority to JP4446690UpriorityCriticalpatent/JPH0726370Y2/ja
Publication of JPH044067UpublicationCriticalpatent/JPH044067U/ja
Application grantedgrantedCritical
Publication of JPH0726370Y2publicationCriticalpatent/JPH0726370Y2/ja