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 JP9326980UpriorityCriticalpatent/JPS6224309Y2/ja
Priority to US06/272,334prioritypatent/US4380947A/en
Publication of JPS5719985UpublicationCriticalpatent/JPS5719985U/ja
Application grantedgrantedCritical
Publication of JPS6224309Y2publicationCriticalpatent/JPS6224309Y2/ja