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 JP1986191346UpriorityCriticalpatent/JPS6396359U/ja
Priority to US07/076,151prioritypatent/US4811618A/en
Priority to KR1019870011243Aprioritypatent/KR910004563B1/ko
Publication of JPS6396359UpublicationCriticalpatent/JPS6396359U/ja