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 JP7215085UpriorityCriticalpatent/JPH0332546Y2/ja
Priority to US06/814,998prioritypatent/US4691742A/en
Publication of JPS61191488UpublicationCriticalpatent/JPS61191488U/ja
Application grantedgrantedCritical
Publication of JPH0332546Y2publicationCriticalpatent/JPH0332546Y2/ja