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 JP1976135503UpriorityCriticalpatent/JPS561696Y2/ja
Priority to US05/839,185prioritypatent/US4131953A/en
Publication of JPS5354216UpublicationCriticalpatent/JPS5354216U/ja
Application grantedgrantedCritical
Publication of JPS561696Y2publicationCriticalpatent/JPS561696Y2/ja