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Priority claimed from JP2580470Aexternal-prioritypatent/JPS4811112B1/ja
Priority claimed from JP2580570Aexternal-prioritypatent/JPS5010316B1/ja
Priority claimed from JP3495070Aexternal-prioritypatent/JPS5011920B1/ja
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Publication of HU162906BpublicationCriticalpatent/HU162906B/hu