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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Publication date
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Priority to JP3238872ApriorityCriticalpatent/JPS5212674B2/ja
Priority to IT22335/73Aprioritypatent/IT982706B/it
Priority to FR7311579Aprioritypatent/FR2178235A1/fr
Priority to DE2316084Aprioritypatent/DE2316084C2/de
Publication of JPS48103487ApublicationCriticalpatent/JPS48103487A/ja
Publication of JPS5212674B2publicationCriticalpatent/JPS5212674B2/ja