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Priority to JP65569ApriorityCriticalpatent/JPS525827B1/ja
Priority to GB1288816Dprioritypatent/GB1288816A/en
Priority to DE19691964665prioritypatent/DE1964665B2/de
Priority to FR6944939Aprioritypatent/FR2027212A1/fr
Publication of JPS525827B1publicationCriticalpatent/JPS525827B1/ja