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Priority to JP3394369ApriorityCriticalpatent/JPS502839B1/ja
Priority to GB1267124Dprioritypatent/GB1267124A/en
Priority to FR7016098Aprioritypatent/FR2047227A5/fr
Priority to DE19702021442prioritypatent/DE2021442C3/de
Priority to DE19702065165prioritypatent/DE2065165C3/de
Publication of JPS502839B1publicationCriticalpatent/JPS502839B1/ja