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.)
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Application filedfiledCritical
Priority to JP1978052650UpriorityCriticalpatent/JPS5756049Y2/ja
Priority to GB7913386Aprioritypatent/GB2023888B/en
Priority to US06/031,339prioritypatent/US4209977A/en
Priority to DE2915770Aprioritypatent/DE2915770C2/de
Priority to FR7909886Aprioritypatent/FR2423722A1/fr
Priority to CH372079Aprioritypatent/CH638651B/fr
Publication of JPS54155762UpublicationCriticalpatent/JPS54155762U/ja
Application grantedgrantedCritical
Publication of JPS5756049Y2publicationCriticalpatent/JPS5756049Y2/ja