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 JP8846287UpriorityCriticalpatent/JPS63198049U/ja
Priority to US07/203,318prioritypatent/US4894680A/en
Publication of JPS63198049UpublicationCriticalpatent/JPS63198049U/ja