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 JP5946781UpriorityCriticalpatent/JPS6122588Y2/ja
Priority to US06/331,180prioritypatent/US4460143A/en
Priority to AT81110757Tprioritypatent/ATE16457T1/de
Priority to EP81110757Aprioritypatent/EP0063648B1/en
Priority to DE8181110757Tprioritypatent/DE3172929D1/de
Publication of JPS57170747UpublicationCriticalpatent/JPS57170747U/ja
Application grantedgrantedCritical
Publication of JPS6122588Y2publicationCriticalpatent/JPS6122588Y2/ja
Priority to KR2019880015025Uprioritypatent/KR880004046Y1/ko
