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 JP1988095463UpriorityCriticalpatent/JPH0412360Y2/ja
Priority to US07/267,298prioritypatent/US4919111A/en
Priority to KR1019880014972Aprioritypatent/KR900000653A/ko
Publication of JPH0221458UpublicationCriticalpatent/JPH0221458U/ja
Application grantedgrantedCritical
Publication of JPH0412360Y2publicationCriticalpatent/JPH0412360Y2/ja