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Priority to JP1968082388UpriorityCriticalpatent/JPS4720296Y1/ja
Priority to GB1259033Dprioritypatent/GB1259033A/en
Priority to US858965Aprioritypatent/US3596683A/en
Priority to FR6931961Aprioritypatent/FR2018586A1/fr
Priority to DE1947591Aprioritypatent/DE1947591C3/de
Priority to BE739122Dprioritypatent/BE739122A/xx
Publication of JPS4720296Y1publicationCriticalpatent/JPS4720296Y1/ja