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 JP1987114926UpriorityCriticalpatent/JPH0730892Y2/ja
Publication of JPS6421212UpublicationCriticalpatent/JPS6421212U/ja
Priority to US07/622,313prioritypatent/US5314665A/en
Application grantedgrantedCritical
Publication of JPH0730892Y2publicationCriticalpatent/JPH0730892Y2/ja
