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Priority to JP77170ApriorityCriticalpatent/JPS5018757B1/ja
Priority to GB6023370Aprioritypatent/GB1302020A/en
Priority to CA101400Aprioritypatent/CA924157A/en
Priority to FR7046895Aprioritypatent/FR2074365A5/fr
Priority to DE19702064259prioritypatent/DE2064259B2/de
Publication of JPS5018757B1publicationCriticalpatent/JPS5018757B1/ja