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 JP6110180UpriorityCriticalpatent/JPS6216784Y2/ja
Priority to US06/257,133prioritypatent/US4401391A/en
Priority to EP81103108Aprioritypatent/EP0039064B1/en
Priority to DE8181103108Tprioritypatent/DE3168437D1/de
Publication of JPS56161989UpublicationCriticalpatent/JPS56161989U/ja
Application grantedgrantedCritical
Publication of JPS6216784Y2publicationCriticalpatent/JPS6216784Y2/ja