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Priority to JP1968038873UpriorityCriticalpatent/JPS468259Y1/ja
Priority to US811704Aprioritypatent/US3547088A/en
Priority to DE1917020Aprioritypatent/DE1917020C3/de
Priority to GB1250094Dprioritypatent/GB1250094A/en
Priority to FR6910273Aprioritypatent/FR2005482A1/fr
Publication of JPS468259Y1publicationCriticalpatent/JPS468259Y1/ja