Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to JP10921076ApriorityCriticalpatent/JPS5336343A/ja
Priority to US05/827,956prioritypatent/US4137857A/en
Priority to GB36354/77Aprioritypatent/GB1591190A/en
Priority to DE2740780Aprioritypatent/DE2740780C2/de
Publication of JPS5336343ApublicationCriticalpatent/JPS5336343A/ja
Publication of JPS5631998B2publicationCriticalpatent/JPS5631998B2/ja