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Priority to JP9932870ApriorityCriticalpatent/JPS526980B1/ja
Priority to DE19712155561prioritypatent/DE2155561A1/de
Priority to GB5214671Aprioritypatent/GB1369625A/en
Priority to FR7140383Aprioritypatent/FR2114548A5/fr
Publication of JPS526980B1publicationCriticalpatent/JPS526980B1/ja