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 JP14783985UpriorityCriticalpatent/JPS6257226U/ja
Priority to US06/912,680prioritypatent/US4720722A/en
Publication of JPS6257226UpublicationCriticalpatent/JPS6257226U/ja
