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Priority to JP1032171UpriorityCriticalpatent/JPS478151U/ja
Priority to US225976Aprioritypatent/US3917389A/en
Priority to DE19722264866prioritypatent/DE2264866A1/de
Priority to DE2208063Aprioritypatent/DE2208063B2/de
Publication of JPS478151UpublicationCriticalpatent/JPS478151U/ja