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Application filedfiledCritical
Priority to JP3937672UpriorityCriticalpatent/JPS5250497Y2/ja
Priority to FR7241030Aprioritypatent/FR2161716A5/fr
Priority to DE2256487Aprioritypatent/DE2256487A1/de
Priority to IT7231859Aprioritypatent/IT971024B/it
Publication of JPS49620UpublicationCriticalpatent/JPS49620U/ja
Application grantedgrantedCritical
Publication of JPS5250497Y2publicationCriticalpatent/JPS5250497Y2/ja