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 JP1981082908UpriorityCriticalpatent/JPH0115937Y2/ja
Priority to US06/306,759prioritypatent/US4444294A/en
Priority to DE3140655Aprioritypatent/DE3140655C2/de
Priority to FR8119907Aprioritypatent/FR2495563B1/fr
Publication of JPS57193429UpublicationCriticalpatent/JPS57193429U/ja
Application grantedgrantedCritical
Publication of JPH0115937Y2publicationCriticalpatent/JPH0115937Y2/ja