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 JP1988050768UpriorityCriticalpatent/JP2505228Y2/ja
Priority to US07/337,349prioritypatent/US4984819A/en
Publication of JPH01152811UpublicationCriticalpatent/JPH01152811U/ja
Application grantedgrantedCritical
Publication of JP2505228Y2publicationCriticalpatent/JP2505228Y2/ja