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Priority claimed from JP16071587Aexternal-prioritypatent/JPS644632A/en
Priority claimed from JP62261252Aexternal-prioritypatent/JPH0627217B2/en
Application filed by Phosphorus Chem IndfiledCriticalPhosphorus Chem Ind
Priority claimed from EP88109684Aexternal-prioritypatent/EP0296501B1/en
Application grantedgrantedCritical
Publication of ATE82309T1publicationCriticalpatent/ATE82309T1/en