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 JP1972042812UpriorityCriticalpatent/JPS542551Y2/ja
Publication of JPS492083UpublicationCriticalpatent/JPS492083U/ja
Application grantedgrantedCritical
Publication of JPS542551Y2publicationCriticalpatent/JPS542551Y2/ja