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Priority to JP7995567ApriorityCriticalpatent/JPS5231709B1/ja
Priority to GB58079/68Aprioritypatent/GB1245785A/en
Priority to US781876Aprioritypatent/US3571655A/en
Priority to FR1594410Dprioritypatent/FR1594410A/fr
Priority to DE1814353Aprioritypatent/DE1814353C3/de
Priority to SE17044/68Aprioritypatent/SE356620B/xx
Publication of JPS5231709B1publicationCriticalpatent/JPS5231709B1/ja