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 JP1988035953UpriorityCriticalpatent/JPH0631896Y2/ja
Priority to US07/324,103prioritypatent/US4884356A/en
Publication of JPH01140260UpublicationCriticalpatent/JPH01140260U/ja
Application grantedgrantedCritical
Publication of JPH0631896Y2publicationCriticalpatent/JPH0631896Y2/ja