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Priority to JP13647074ApriorityCriticalpatent/JPS542721B2/ja
Priority to DE19752532263prioritypatent/DE2532263A1/de
Priority to FR7522612Aprioritypatent/FR2285258A1/fr
Publication of JPS5160994ApublicationCriticalpatent/JPS5160994A/ja
Publication of JPS542721B2publicationCriticalpatent/JPS542721B2/ja