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 JP18017787UpriorityCriticalpatent/JPH0525249Y2/ja
Priority to US07/271,220prioritypatent/US5018050A/en
Priority to KR1019880015053Aprioritypatent/KR920002054B1/ko
Publication of JPH0184443UpublicationCriticalpatent/JPH0184443U/ja
Priority to US07/651,457prioritypatent/US5144155A/en
Application grantedgrantedCritical
Publication of JPH0525249Y2publicationCriticalpatent/JPH0525249Y2/ja