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Priority to JP1664972ApriorityCriticalpatent/JPS4885225A/ja
Priority to US306393Aprioritypatent/US3871005A/en
Priority to GB5302972Aprioritypatent/GB1410950A/en
Priority to DE19722256602prioritypatent/DE2256602C3/de
Publication of JPS4885225ApublicationCriticalpatent/JPS4885225A/ja