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 JP16569885UpriorityCriticalpatent/JPH0242247Y2/ja
Priority to US06/922,020prioritypatent/US4721099A/en
Publication of JPS6274802UpublicationCriticalpatent/JPS6274802U/ja
Application grantedgrantedCritical
Publication of JPH0242247Y2publicationCriticalpatent/JPH0242247Y2/ja
