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 JP1980129516UpriorityCriticalpatent/JPS6215861Y2/ja
Priority to FR8116981Aprioritypatent/FR2490048B1/fr
Priority to DE3135516Aprioritypatent/DE3135516C2/de
Priority to US06/300,452prioritypatent/US4446497A/en
Priority to GB8127241Aprioritypatent/GB2083682B/en
Publication of JPS57118534UpublicationCriticalpatent/JPS57118534U/ja
Application grantedgrantedCritical
Publication of JPS6215861Y2publicationCriticalpatent/JPS6215861Y2/ja