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Priority to JP1987673ApriorityCriticalpatent/JPS49107629A/ja
Priority to GB617674Aprioritypatent/GB1417827A/en
Priority to SE7402106Aprioritypatent/SE399018B/xx
Priority to DE19742407830prioritypatent/DE2407830A1/de
Publication of JPS49107629ApublicationCriticalpatent/JPS49107629A/ja
Priority to US05/624,781prioritypatent/US4005770A/en