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Priority claimed from FR8812066Aexternal-prioritypatent/FR2636335B1/en
Priority claimed from FR898905846Aexternal-prioritypatent/FR2646426B2/en
Application filed by Bp Chem Int LtdfiledCriticalBp Chem Int Ltd
Application grantedgrantedCritical
Publication of ATE97134T1publicationCriticalpatent/ATE97134T1/en