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 JP1990092475UpriorityCriticalpatent/JPH089717Y2/ja
Priority to US07/751,342prioritypatent/US5305050A/en
Publication of JPH0450833UpublicationCriticalpatent/JPH0450833U/ja
Application grantedgrantedCritical
Publication of JPH089717Y2publicationCriticalpatent/JPH089717Y2/ja