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Priority claimed from JP47079758Aexternal-prioritypatent/JPS5147718B2/ja
Priority claimed from JP47115762Aexternal-prioritypatent/JPS523391B2/ja
Priority claimed from JP47116469Aexternal-prioritypatent/JPS523393B2/ja
Priority claimed from JP47116468Aexternal-prioritypatent/JPS523392B2/ja
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Publication of HU167181BpublicationCriticalpatent/HU167181B/hu