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 JP13659580UpriorityCriticalpatent/JPS6117621Y2/ja
Priority to US06/304,734prioritypatent/US4456887A/en
Priority to DE3138078Aprioritypatent/DE3138078C2/de
Publication of JPS5760413UpublicationCriticalpatent/JPS5760413U/ja
Application grantedgrantedCritical
Publication of JPS6117621Y2publicationCriticalpatent/JPS6117621Y2/ja
