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Priority to JP12697670UpriorityCriticalpatent/JPS4919509Y1/ja
Priority to DE2159336Aprioritypatent/DE2159336A1/de
Priority to GB5612971Aprioritypatent/GB1378859A/en
Priority to FR7145059Aprioritypatent/FR2118643A5/fr
Priority to IT7110971Aprioritypatent/IT943272B/it
Priority to US00208823Aprioritypatent/US3740808A/en
Publication of JPS4919509Y1publicationCriticalpatent/JPS4919509Y1/ja