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 JP1979019104UpriorityCriticalpatent/JPS641823Y2/ja
Priority to US06/077,112prioritypatent/US4318032A/en
Publication of JPS55121568UpublicationCriticalpatent/JPS55121568U/ja
Application grantedgrantedCritical
Publication of JPS641823Y2publicationCriticalpatent/JPS641823Y2/ja