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 JP16071679UpriorityCriticalpatent/JPS6021565Y2/ja
Publication of JPS5681233UpublicationCriticalpatent/JPS5681233U/ja
Priority to US06/456,726prioritypatent/US4422534A/en
Application grantedgrantedCritical
Publication of JPS6021565Y2publicationCriticalpatent/JPS6021565Y2/ja