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Priority to JP8525368ApriorityCriticalpatent/JPS5120541B1/ja
Priority to DE19691907017prioritypatent/DE1907017B2/de
Priority to FR6903766Aprioritypatent/FR2001918A1/fr
Priority to NL6902369Aprioritypatent/NL6902369A/xx
Priority to GB1252601Dprioritypatent/GB1252601A/en
Publication of JPS5120541B1publicationCriticalpatent/JPS5120541B1/ja