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Priority claimed from US06/349,891external-prioritypatent/US4406758A/en
Priority claimed from US06/404,689external-prioritypatent/US4431494A/en
Application filed by Dow Chemical CofiledCriticalDow Chemical Co
Priority claimed from EP82111803Aexternal-prioritypatent/EP0086896B1/de
Application grantedgrantedCritical
Publication of ATE30604T1publicationCriticalpatent/ATE30604T1/de