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 filedfiledCritical
Priority to JP1987117057UpriorityCriticalpatent/JPS6422289U/ja
Priority to PCT/JP1988/000763prioritypatent/WO1989000818A1/ja
Priority to US07/345,544prioritypatent/US5109759A/en
Publication of JPS6422289UpublicationCriticalpatent/JPS6422289U/ja