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Priority to JP12626272UpriorityCriticalpatent/JPS5152314Y2/ja
Priority to GB5062173Aprioritypatent/GB1413039A/en
Priority to US05/411,414prioritypatent/US3936816A/en
Publication of JPS4981154UpublicationCriticalpatent/JPS4981154U/ja
Application grantedgrantedCritical
Publication of JPS5152314Y2publicationCriticalpatent/JPS5152314Y2/ja