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 JP1988100904UpriorityCriticalpatent/JP2520982Y2/ja
Priority to US07/386,077prioritypatent/US4952199A/en
Publication of JPH0222448UpublicationCriticalpatent/JPH0222448U/ja
Application grantedgrantedCritical
Publication of JP2520982Y2publicationCriticalpatent/JP2520982Y2/ja