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 JP1989141387UpriorityCriticalpatent/JP2562712Y2/ja
Priority to US07/621,971prioritypatent/US5161750A/en
Publication of JPH0379669UpublicationCriticalpatent/JPH0379669U/ja
Application grantedgrantedCritical
Publication of JP2562712Y2publicationCriticalpatent/JP2562712Y2/ja
