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Priority to JP2436573UpriorityCriticalpatent/JPS49126448U/ja
Priority to US05/443,081prioritypatent/US3936045A/en
Priority to GB840174Aprioritypatent/GB1451738A/en
Priority to DE2409209Aprioritypatent/DE2409209C3/de
Publication of JPS49126448UpublicationCriticalpatent/JPS49126448U/ja