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 JP6504477ApriorityCriticalpatent/JPS53149189A/ja
Priority to US05/818,650prioritypatent/US4133755A/en
Publication of JPS53149189ApublicationCriticalpatent/JPS53149189A/ja
Publication of JPS5731452B2publicationCriticalpatent/JPS5731452B2/ja