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Priority claimed from US07/319,415external-prioritypatent/US5171772A/en
Application filed by Union Carbide CorpfiledCriticalUnion Carbide Corp
Publication of FI891796A0publicationCriticalpatent/FI891796A0/fi
Publication of FI891796A7publicationCriticalpatent/FI891796A7/fi
Publication of FI891796LpublicationCriticalpatent/FI891796L/fi