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Priority to JP8143070UpriorityCriticalpatent/JPS499044Y1/ja
Priority to DE2141251Aprioritypatent/DE2141251B2/de
Priority to US00172591Aprioritypatent/US3731009A/en
Priority to FR7129955Aprioritypatent/FR2112432B1/fr
Priority to GB3850571Aprioritypatent/GB1314506A/en
Publication of JPS499044Y1publicationCriticalpatent/JPS499044Y1/ja