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 JP688472ApriorityCriticalpatent/JPS52427B2/ja
Priority to DE19732301913prioritypatent/DE2301913C3/de
Priority to FR7301773Aprioritypatent/FR2168814A5/fr
Priority to IT6707473Aprioritypatent/IT977625B/it
Priority to GB302073Aprioritypatent/GB1382223A/en
Publication of JPS4877958ApublicationCriticalpatent/JPS4877958A/ja
Priority to US05/633,077prioritypatent/US4065599A/en
Publication of JPS52427B2publicationCriticalpatent/JPS52427B2/ja