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 JP346583UpriorityCriticalpatent/JPS59109382U/ja
Priority to US06/570,680prioritypatent/US4720709A/en
Publication of JPS59109382UpublicationCriticalpatent/JPS59109382U/ja
Application grantedgrantedCritical
Publication of JPS646539Y2publicationCriticalpatent/JPS646539Y2/ja