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 JP19995784UpriorityCriticalpatent/JPH0342775Y2/ja
Priority to US06/813,510prioritypatent/US4687352A/en
Publication of JPS61116466UpublicationCriticalpatent/JPS61116466U/ja
Application grantedgrantedCritical
Publication of JPH0342775Y2publicationCriticalpatent/JPH0342775Y2/ja