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Priority claimed from GB3784775Aexternal-prioritypatent/GB1543550A/en
Priority claimed from US05/667,309external-prioritypatent/US4053161A/en
Application filedfiledCritical
Publication of JPS5237029ApublicationCriticalpatent/JPS5237029A/ja
Publication of JPS557625B2publicationCriticalpatent/JPS557625B2/ja