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 JP1988053125UpriorityCriticalpatent/JPH0322540Y2/ja
Priority to US07/302,535prioritypatent/US5082298A/en
Publication of JPH01157257UpublicationCriticalpatent/JPH01157257U/ja
Priority to US07/698,707prioritypatent/US5131668A/en
Application grantedgrantedCritical
Publication of JPH0322540Y2publicationCriticalpatent/JPH0322540Y2/ja
