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 JP7293087UpriorityCriticalpatent/JPS63183732U/ja
Priority to US07/174,170prioritypatent/US4871987A/en
Publication of JPS63183732UpublicationCriticalpatent/JPS63183732U/ja
