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Priority claimed from US05/776,195external-prioritypatent/US4097591A/en
Priority claimed from US05/804,368external-prioritypatent/US4131673A/en
Priority claimed from US05/804,331external-prioritypatent/US4140681A/en
Application filed by Mitsubishi Chem Ind, Okamoto ShosukefiledCriticalMitsubishi Chem Ind
Publication of PL204063A1publicationCriticalpatent/PL204063A1/pl
Publication of PL123267B1publicationCriticalpatent/PL123267B1/pl