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Priority claimed from JP2769671Aexternal-prioritypatent/JPS508409B1/ja
Priority claimed from JP2769771Aexternal-prioritypatent/JPS508410B1/ja
Priority claimed from JP46046463Aexternal-prioritypatent/JPS5035484B1/ja
Application filed by Akita KkfiledCriticalAkita Kk
Publication of PH10871ApublicationCriticalpatent/PH10871A/en