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Priority claimed from JP5770871Aexternal-prioritypatent/JPS5029478B1/ja
Priority claimed from JP8298871Aexternal-prioritypatent/JPS4848488A/ja
Priority claimed from JP8486071Aexternal-prioritypatent/JPS4849783A/ja
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Publication of HU166023BpublicationCriticalpatent/HU166023B/hu