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Priority to JP251170ApriorityCriticalpatent/JPS507769B1/ja
Priority to IT3370570Aprioritypatent/IT1033048B/it
Priority to FR7100183Aprioritypatent/FR2075247A5/fr
Priority to DE19712100528prioritypatent/DE2100528C3/de
Priority to GB123271Aprioritypatent/GB1302463A/en
Publication of JPS507769B1publicationCriticalpatent/JPS507769B1/ja