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 JP46092338ApriorityCriticalpatent/JPS5142817B2/ja
Priority to DE2256487Aprioritypatent/DE2256487A1/de
Priority to FR7241030Aprioritypatent/FR2161716A5/fr
Priority to AU49064/72Aprioritypatent/AU4906472A/en
Priority to IT7231859Aprioritypatent/IT971024B/it
Publication of JPS4857327ApublicationCriticalpatent/JPS4857327A/ja
Publication of JPS5142817B2publicationCriticalpatent/JPS5142817B2/ja